Crystals may be insulators, semiconductors, or conductors.晶体可以是绝缘体, 半导体, 或导体.Natural fabrics like silk and wool are better insulators than synthetics.丝绸和羊毛之类的纯天然织物比合成纤维的保暖性更好。Polluted insulators may flashover at any time...
西医能不能不用做手术 、 化疗和电疗便能医到癌症?Can western medicine cure cancer without surgery, chemotherapy or radiotherapy?周四他做了电疗,在手上也缠上了绷带.He did electro - stimulation treatment and a bandage covered his hand Thursday.淋巴做化疗 ( 放疗,电疗 ) 一次要...
She addressed them by hand in her beautiful italic script.她用漂亮的斜体字写明了收信人姓名和地址。It is worth taking the trouble to sieve the fruit by hand.值得费点劲用手挑挑果子。Rice farmers here still plant and harvest their crops by hand.这里种植水稻的农场主...