... fixed part固定件 flash signal light闪光信号灯 flat fillet seam平角焊缝 ...
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flash light signal 闪光号志
flash signal light
闪光信号灯
以上为机器翻译结果，长、整句建议使用 人工翻译 。
On the observation deck was a tarp-covered signal light, which Burke, an ex-Navy lieutenant, likes to flash at passing ships.
NEWYORKER: Bones of Contention
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