1. 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。

来自互联网

2. 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。

来自互联网