请输入您要查询的英文单词：
单词
distress signal
释义
distress signal
(遇难船只或飞机等发出的)求救信号，遇难(呼救)信号(如SOS)[参较distress call]
(病人等的)危急求救信号(或呼号)
(尤指不用语言传达的)求援信号
随便看
diode forward voltage
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diodes
diode switch
diode theory
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diode-triode
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diodide
diodides
diodone
Diodrast
dioecian
dioecies
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更新时间：2026/10/3 15:08:45