例句與造句

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
   此測試用于檢測pcb表面是否受到有機(jī)，非離子污染，但不能識別此污染物或其單個組成成份。
2. It's difficult to find ionic contaminant in a sentence. 用ionic contaminant造句挺難的