系统地探讨了车辆气密性能对隧道净空面积的影响规律。
This article systematically investigated the dependence of tunnel cross-section areas on vehicle sealing characters.
介绍了氯化丁基橡胶气密性基本原理及影响气密性能的因素。
In this paper, we introduce the airproof principle of butyl chloride rubber and the factors related to the airproof.
阀门关闭时，有高的气密性能，并有隔音作用，优于其它型式的板式排烟口。
Compared with other plate type flue gas exhausts, the utility model has the advantages that when the valves are closed, the utility model has high gasproof performance and soundproof function.
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