Paper products finishing technology end of the day : is by analogy and abs v classing class.纸制品整饰技术说到底: 贵在举一反三和融类旁通.The teacher drew an analogy between the human heart and a pump.老师打了个比喻，把人的心脏比作水泵。This classification is ...
Iron content in zinc - iron - phosphorus alloy electrodeposits was determined by means of spectrophotometry.采用分光光度法测量了锌 - 铁 - 磷合金镀层中的铁含量.Bright tin electrodeposits on copper wire are susceptible to tarnishing.铜线材经光亮镀锡后易产...