periscope depth 中文意思是什麼
periscope depth
解釋
潛望鏡深度-
Riding at periscope depth was a restful change after a week of plunging and rolling.
經過一星期的顛簸折騰之後,改在潛望鏡深度航行是一番休息。 -
In the middle of the atlantic ocean, with a salinity of 3. 2 %, a vlf signal will penetrate down to a depth of 10 - 20 meter, barely periscope - depth for a modern large scale submarine
在大西洋中部,海水的鹽度為3 . 2 % ,甚低頻無線電信號可以穿透到海面下10 ~ 20米的深度,幾乎就是現代大型潛艇的潛望鏡深度。
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