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air-tight joint
construct.	紧密接缝
met.	密封结合; 气密连接; 密封接合
space	气密接头
tech.	紧密接合; 气密接合; 气密接缝; 密封接头; 密闭接头; 密闭接缝
telecom.	电缆气密接头
air tight joint
el.	气密接头; 气密接合
tech.	密封接合; 气密连接; 气密接缝