Methods: we can use the particles accounter to test the leakage of HAPE filter. Results;

方法：用尘埃粒子计数器检测高效过滤器是否有泄漏现象。

youdao

Methods: we can use the particles accounter to test the leakage of HAPE filter. Results;

方法：用尘埃粒子计数器检测高效过滤器是否有泄漏现象。

youdao