air tight seal

基本解释

The commonly used hydraulic seal test and air-tight test for the closed plastic container need to drill a hole on the container body. After test, the container is wasted.
闭口塑料容器一直采用桶身钻孔进行液压和气密试验，浪费较大。
By surrounding a gas-tight, pattented V-Seal with two compressed knitted wire mesh air gap spacers, the connection is made by simply sliding one section of pipe over another.
气密的V形密封器，两个压缩的编织金属网布气隙间隔器，略过管的一部分滑向另一部分。
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This review gives working mechanism of disc reactor shaft seal and points out the major factors that could improve air-tight seal effect. Besides it introduces some improvements on shaft seal.
叙述了圆盘反应器轴封的工作原理，指出了影响轴封密封效果的主要因素并介绍轴封的改进措施。