vapour-proof connection 不漏汽接头
explosion - proof connection box 隔爆接线盒
vapor-proof connection 汽密连接
proof connection box 隔爆接线盒
explosion-proof flexible connection piping 防爆挠性连接管
ground connection for thunder proof 防雷接地
proof connection
证明连接
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The United States has no proof of any connection, Raissi's lawyer, Richard Egan, said.
CNN: U.S. bids to extradite Algerian pilot
Officials said they have no proof of a connection.
CNN: Airman charged with espionage at Guantanamo
They paid handsomely for a public-relations campaign that insistently denied any proof of a causal connection between smoking and cancer.
ECONOMIST: Tobacco
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