Tomorrow is 515, the anniversary of the starting point, and the day with the most benefits. Pen, Fun, Pavilion www.biquge.info In addition to the gift bag and school bag, this time's "515 Red Envelope Flip" must see, how can there be a reason not to grab the red envelope, set the alarm clock high~

In the command center, a dark red light filled the space, bringing people an inexplicable sense of pressure and tension.

It is said that the dark red light is the fastest of all the colors that can make people adapt to the darkness the fastest. Just in case, when fighting, the lighting of the command center is dark red - it has become traditional. I don't know if there is any point in doing this now.,Ship Niang and human eyes,It must be different.,Although some ship girls still have to rely on searchlights for night battles - basically a bunch of night blind elementary school students in the Japanese ship are like that.,But many American ship girls,If you have a night vision radar,Don't care much about the problem of light and darkness.。

However, whether it is a ship mother or a human being, although the views on light are different, they agree with the psychological role of color. Red makes people excited, nervous, and mentally focused.

"Location?" General Grant was in the commanding seat.

"Approximate azimuth 267, distance 83 nautical miles, species unknown."

"What?" Political Commissar Qin looked over in surprise, "83 nautical miles? How could you possibly find out? ”

"In fact, it is 'possible' that there is a deep sea, and it is more likely that there are false positives. If it were normal, I wouldn't have sounded the battle alarm. ”

"Well done, this is basically a covert operation. Avoid all unnecessary engagements. "General Grant agrees with my approach." Even if it's a false positive, it's better to be cautious. Kunming, reduce the speed to 10 knots, minimize the sound of cavitations, and see if you can avoid suspected targets. ”

"Yes! Speed 10. The ship has an electric thrust, does it need to be started? ”

"Wait until the suspected target is close to 40 nautical miles, and then start the electric propulsion."

"Yes. The propulsion is activated when the target is close to 40 nautical miles. ”

"Always keep an eye on the target. Prompts every five minutes. ”

"Yes, the timer begins."

As a result, half an hour later, the target was far away, the alarm was lifted, and congratulations, congratulations.

After the disbandment, I left the command room and went directly to the sonar operation room, taking advantage of the fact that the generals and political commissars had not yet dissipated.

I was operating the instrument when a voice came from behind.

"Huh? How, exactly? 83 nautical miles? That's incredible, isn't it? ”

When I looked back, it turned out to be Senpai. I wanted to leave directly, but the underwater acoustic data at hand was halfway done, so there was no way to leave, so I had to answer her questions.

"Actually, it's a trick."

"Tricks?"

"That's right, theoretically, if it is a deep-sea patrol submarine, it is impossible for the underwater sound to be heard within the range of 80 nautical miles, and this detection distance can probably only be detected by the sonar matrix and sonar buoys arranged on the continental shelf near the coastline. And even if it is detected, it is impossible to know what it is. ”

"Then how does Kunming sauce know?"

"Well." I stuck out my tongue" The above is based on the premise that if the deep sea does not take the initiative to speak out. If they had turned on active sonar, the sound source could even be detected by passive sonar at a range of hundreds of nautical miles. ”

"Huh?" The senior sister's eyes widened, "Are these guys crazy?" Idle and have nothing to do active sonar? ”

"The deep sea is crazy, but not to that extent. But is there something that does make a sound? ”

"What is it?" The senior sister blinked and asked, Oops, it's actually a little cute.

"It's this!" I turned on the outlet.

A sonar room filled with long and wonderful sounds. The melodious singing, like a thick and viscous syrup, flowed and flipped in the small metal room. If the human voice is a glass, light, transparent, clean, and small, then this voice is like a bronze vessel, heavy, mysterious, round, and atmospheric. And in that mysterious voice, there is a bit of tenderness, and there is also a little bit of philosophy and pride - these things are expressed through the deep blue water.

"Is it a whale song?"

"It's a whale song! Fortunately, the deep sea does not overkill whales. Whales are truly wise and beautiful creatures. ”

"Can you understand the whale song?"

"Part of it...... Maybe it shouldn't be understood as understood. I'm just recording the songs of the whales in different situations and analyzing them. At this level, it should not be understood. Sometimes, though, I can also make certain sounds to talk to the whales. ”

"It's amazing!"

I casually played a piece of singing. "It's the sperm whale's voice - because my pronunciation is weird, the sperm whale is kindly correcting my voice."

It's a melody that sounds like a harmony. It sounds like a big sister who is a great singer and a little sister who is always out of tune to practice singing together.

"If whales are mostly gentle...... Then the dolphin can be considered bad. ”

I let out a clattering sound, like a woodpecker tapping on a tree trunk at a rapid pace, mixed with a high, sharp whistle.

"Dolphins will laugh at you for having a bad accent, and these guys will actually be geographically discriminatory."

The senior sister covered her mouth and laughed. "Then what did Kunming sauce hear just now?"

"It was a sperm whale, and I was a little panicked because I saw a patrol submarine in the deep sea. I happened to hear it, so I separated the sound of the water, separating the submarine from the background. To be honest, at such a distance, if it were not for a hint, the deep sea would not have been noticed. ”

"Are there whales and dolphins around now?"

"Yes...... And there are quite a few, in different directions. I can separate the sound of water. Want to listen? ”

"Hmmm! To listen. ”

After filtering out the background, a beautiful, long melody sounds. It is a chorus of a pair of minke whales.

"What's the point of this?"

"Wait a minute, wait for me to load the water sound library, just do a comparison, and the results can be displayed directly on the monitor."

……

The two minke whales were chatting leisurely, completely unprepared for being overheard by humans.

"Today's wave...... It's so noisy. ”

"But in this wave, there is a faint cry."

"The tide has pushed the ominous stuff into this sea."

Huh? Could it be that whales have discovered the deep sea again? Anyway, this translation style is a bit weird.,The last time I and the second sister were in harmony with the water sound library, I felt that the style was a bit of a problem.。 But now is not the time to care about this, I feel like listening to what minke whales have discovered?

"Let's go, before the tide stops......"

Is there really a problem? My senior sister and I stared nervously at the screen.

Suddenly, it seems that a third minke whale rushed into the conversation.

"Oh no~~~"

I began to comprehensively analyze the water sounds, squelchs, filtering, and contrasts around those whales. At the same time, be ready to sound the battle alarm at any time.

"The fish next to me are going to run away~~~~"

Miscellaneous!

Whatever!

Ghost!

……

After a few days of perilous sailing, we approached Guam, a transit point, for a short resupply and recuperation.

PS. 5.15 "The starting point" is raining red envelopes! Starting at 12 noon, grab a round every hour, and a large wave of 515 red envelopes depends on luck. You all go and grab it, and the starting coins you grabbed continue to subscribe to my chapters!