However, its disadvantages are poor oil resistance, incompatible with polar substance, and poor adherence to polar substance etc.
其缺点是耐油性差，与极性物质不相容，不粘接等。
Finally we drew an elementary conclusion that the fairly strong poisonous components in the two plants were mainly non - polar or weak-polar substance.
初步判定这两种植物中毒力较强的活性成分主要是一些非极性或极性较弱的物质。
The polar active substance gives this quality the lubricity for stamping of middle difficulty Aluminum sheets.
产品中的极性物质能提高其润滑性能。
应用推荐