〈電〉underwater lighting system

〈電〉underwater radiance meter

〈電〉underwater irradiance meter

〈電〉underwater vehicle

〈電〉underwater transmissometer

〈電〉underwater acoustic communication set；underwater communication system

〈測〉correction of tidal zoning

〈車〉water-cooled engine

shuǐ lì tíng liú shí jiān

〈下水〉水理学的滞留時間

〈英語〉Hydraulic retention time．HRT

shuǐ bāo yóu rǔ zhuàng yè

〈化〉水中油型エマルション

shuǐ yā shì yàn yā lì

〈電〉試験水圧

〈電〉hydrophone calibrator

〈医〉hydrocele trocar

shuǐ jī xíng miè huǒ qì

水系消火器．

〈測〉acoustic holography system

〈測〉acoustic positioning system

〈電〉underwater sound test tank

shuǐ mì xìng hùn níng tǔ

〈土木〉水密コンクリート．防水コンクリート

〈英語〉watertight concrete

shuǐ féng shì' ān quán fá

〈繁〉水封安全弁

shuǐ píng piān zhuǎn diàn lù

〈電〉水平偏向回路

〈英語〉horizontal deflection circuit

shuǐ píng dì hèn xì shù

水平震度

shuǐ píng gān shì chuán shū

〈機〉乾式水平搬送

〈電〉beam-loading thermobalance

shuǐ píng tóu yǐng miàn jī

水平投影面積

shuǐ píng wú fāng xiàng xìng

（アンテナ）水平面内無指向性