Also analyzed the device and method used in homeland and abroad, there have low accuracy and time consuming shortage. The very current mask is to develop high-property equipments.

分析了国内外测试仪器及方法，指出了主要存在精度和效率的矛盾及目前关键是开发高性能测试仪器的问题。

youdao

Would announcing that federal inspectors were on the property allow mining employees to temporarily mask safety violations?

FORBES: Massey Energy Employee Guilty of Obstruction, But Where Was Management?