发令枪
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(发(fā )令(lìng )枪(qiāng ),发(fā )令(lìng )枪(qiāng ))
径(jìng )赛(sài )、游(yóu )泳(yǒng )比(bǐ )赛(sài )等(děng )开(kāi )始(shǐ )时(shí ),用(yòng )来(lái )发(fā )出(chū )声(shēng )音(yīn )信(xìn )号(hào )的(de )器(qì )械(xiè ),形(xíng )状(zhuàng )像(xiàng )手(shǒu )枪(qiāng )。
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