砂尘试验 meaning in Chinese

dust test

Electric connectors - sand and dust test procedure
电气连接件.砂尘试验过程
The method of environmental test for analytical instruments - sand and dust content of the air test
分析仪器环境试验方法砂尘试验
Basic environmental testing procedures for electric and electronic products - test l : dust and sand
电工电子产品基本环境试验规程试验l :砂尘试验方法