本文报道了用菱锌矿作原料,制备硫酸锌的工艺条件.The technological conditions of the preparation of zinc sulfate with smithsonite as raw materials was reported.研究了以菱锌矿为原料通过酸浸、除杂、中和、沉淀、干燥制备碱式碳酸锌和活性氧化锌的生产工艺.A process for the production of basic zi...
I started cropping my beans in July.我7月份开始收割豆类作物。The sheep were cropping on the grass.羊群在吃青草.Be careful when you walk in this field; there are lots of rocks cropping out.你在这块地行走时要小心, 地面上有许多露出来的石头....
大约1/6的夫妻有受孕困难。About one in six couples has difficulty conceiving.她因不能自然怀孕而接受受孕治疗.She was unable to conceive a child naturally and was offered fertility treatment.妇女排卵期不正常就不易受孕.Women who do not ovulate regularly have diff...
merry的反义词有：melancholy, gloomy, gloomy, sad, melancholy, dismal。adj.merry的反义词（欢乐的;轻快的）：melancholy, gloomy。merry的反义词（其他释义）：gloomy, sad, melancholy, dismal。...
Increase the neutrophilic granulocyte count after bone marrow transplantation.促进骨髓移植后中性粒细胞计数增加.Method: Ultrastructure in ovary granulocyte of menopausal rat was observed with optical microscope and electric microscope.方法...