短語(yǔ)詞組短語(yǔ)leak proof tightness 密封internal leak -tightness 內(nèi)部密封性leak gas tightness 密閉度external leak -tightness 外部密封性Leak -tightness 無(wú)泄漏radiation leak -tightness 防止輻射能漏出設(shè)備containment leak tightness 安全殼密封性Integrity Leak Tightness 整躰密封性能leak tightness characteristics 密封性狀 返回 leak tightness