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...
Pansies are usually variegated.紫罗兰通常杂有好几种颜色.Pansies are lovely flowers.三色紫罗兰是可爱的花....a particularly beautiful strain of Swiss pansies.一种格外美丽的瑞士三色堇He grew some pansies in the garden.他在花园里种了一些三色紫罗兰....
空间站在重返地球大气层时会被烧毁。The station would burn up on re-entry into the earth's atmosphere.她又重返大银幕，扮演坎迪专横的母亲罗丝。She returns to the big screen to play Candy's overbearing mother, Rose.他重返教学岗位。He returned to school teachi...
"What ails you?" he asked.“你哪里不舒服？”他问道。'What ails you?' he asked.“你哪里不舒服？”他问道。Measles ails the little girl.麻疹折磨着这个小女孩。He will not concede what anything ails his business.他不允许任何事情来干扰他的工作.A full-scale debate is u...