contacter接触器, 开关, 触点contactn.接触；联系；熟人v.(与)联系；(与)接触adj.接触的contact extension接触延伸contact materials触头材料contact corrosion接触腐蚀contact phenomena接触现象contact poisoning[化] 触杀作用; 接触作用contact burnisher接点擦试器contact vibration接触振动contact reforming接触重整,催化重整contact behaviour接触行为contact lubricant触点润滑剂