ionic contaminants造句

例句与造句

1. This test method is for use in determining if organic , no - ionic contaminants are present on bare pcb . it can ' t identify the contaminants or individual constituents
   此测试用于检测pcb表面是否受到有机，非离子污染，但不能识别此污染物或其单个组成成份。
2. It's difficult to find ionic contaminants in a sentence. 用ionic contaminants造句挺难的