The penetration law of a solution of calcium chloride, water glass and sodium succinate into dust is determined by the forward permeability test.
采用正向渗透试验方法测定了氯化钙和水玻璃溶液添加丁二酸钠后溶液在粉尘介质中的渗透规律。
2
Aviod water and moisture penetration, otherwise blow it dry in time and start a megger insulation test which should include the insulation between connection joints as well as joints and cabinet.
避免焊机内进水或受潮，否则及时吹干，用兆欧表测量绝缘情况(包括连接节点之间及连接点与机壳之间)。
3
The interactions of water-precoated paper and coating-precoated paper were analyzed by using three methods, which were ultrasound dynamic penetration, AA-GWR water retention and Cobb test.