life line throwing gun的意思|示意

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救生索抛射枪

救生索发射枪 ... 下桅肩处平台,桅楼,桅台 top 救生索发射枪,抛绳枪 life line throwing gun 极大型原油轮,巨型油轮 VLCC (= very large crude oil carrier) ...

救生抛绳枪 life line throwing gun 救生抛绳枪; 救生索发射枪,抛绳枪; 救生索抛射枪 life line-throwing appliance 救生抛绳设备 .