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词汇
送話器
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送話器
sòng huà qì
即发话器。一种小型的专用于电话通信的传声器。能把话音转换为声频电信号以便传输。送话器常与受话器联合装配成为送受话器。用于电话机、人工电话交换机及其他通讯设备中。电话机的一部分。发话时,声波使其炭精板振动,电流发生变化,受话器则因而产生与原音波相同的振动而发声。
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oil and natural gas migration
oil and natural gas pipeline
oil and natural gas prospecting equipment
oil and natural gas resources
Oil and petrochemical industry
oil and residue excluded oil
oil and seawater resistance
oil and smoke cleaner
OIL AND SMOKE EXHAUSTER SERIES
oil and soap insecticide
oil and source correlation
oil and source rock correlation
oil and tallow
Oil and truth get uppermost at last
oil and vinegar
Oil and vinegar
oil-and-vinegar
oil and vinegar bottle
oil and water
oil-and-water
Oil and water always separate out
Oil and water are not miscible
oil and water contact
oil and water content
oil and water distribution
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更新时间:2026/9/23 0:44:20