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词汇 Patent log
分类 英语词汇 英语翻译词典
释义

Patent log

原声例句
海底两万里（原版）

An electric wire puts it in contact with the patent log; this needle shows me the actual speed of my submersible.

一根电线把它跟测程器的螺旋桨连接起来，它上面的长针给我指出船行的实际快慢。

英语百科

Pitometer log

（重定向自Patent log）
Figure 1: Photo of World War II US Navy submarine pitometer. This unit uses a mercury-based manometer to measure the difference in static and dynamic water pressure.
Figure 2: Illustration of a Mercury Manometer-Based Pitometer Log.

Pitometer logs (also known as pit logs) are devices used to measure a ship's speed relative to the water. They are used on both surface ships and submarines. Data from the pitometer log is usually fed directly into the ship's navigation system.
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