Preparation of salicylic hydrazide . Controlling material mole ratio and the product recrystallization is the key.水杨 酰肼的制备控制原料的摩尔比、产物的重结晶是关键....the degradation of salicylic acid in plants.植物中水杨酸的降解Topical ointments and c...
电测系统选用进口双列封装的线性和集成电路.Feb import dual - use monitoring system is linear and IC packaging.不过串口通讯类封装的较完善, 使用也简单.But serial communications package better, also simple to use.有关FPGA芯片的管脚的封装的一些资料.Pin on the FPGA chip packaging...
an A to Z of needlework刺绣指南大全They were chattering ( discursively on a variety of topics ) over their needlework.她们一边做针线活一边 闲扯 个不停.Her needlework is quite presentable.她的针线活挺像样的....
He wore a T-shirt that had been tie-dyed in bright colours.他身穿一件颜色鲜艳的扎染的T恤。Kippers are dyed yellow to make them more appetizing.烟熏鲱鱼被腌成了黄色，令人垂涎欲滴。I bought a great tie-dyed silk scarf.我买了条非常好的扎染丝巾。...