sounder

柯林斯詞典

sounder /?sa?nd?/

• 1. N an electromagnetic device formerly used in telegraphy to convert electric signals sent over wires into audible sounds (曾用在電信技術(shù)中的)音響器; 以轉(zhuǎn)化電信號(hào)并把它送進(jìn)導(dǎo)線變?yōu)槁牭靡姷穆曇?/p>




sounder /?sa?nd?/

• N

• 1. N a person or device that measures the depth of water, etc 測量水深的人; 測量水深的儀器

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