Once its impurities had settled, the oil could be graded.一旦杂质沉淀下去，油就可以分级了。A filter will remove most impurities found in water.过滤器会滤掉水中的大部分杂质。Oil is refined to remove naturally occurring impurities.油经过提炼去除天然存在的杂质。...
Once its impurities had settled, the oil could be graded...一旦杂质沉淀下去，油就可以分级了。The separation and determination of the primary impurities of diflubenzuron by liquid chromatography were carried out.通过反相液相色谱方法往甲醇与水的混合流动相中加入适当...
Unmanned post offices meant millions of letters went unsorted.邮局无人工作意味着许多信件无人分拣。an unmanned Mars mission无人火星探测Scientists say these unmanned flights can make important and exciting discoveries.科学家们说这次无人驾驶的太空飞行能够获得令人兴奋的重大发...
She craned her neck to get a better view...她伸长脖子想看得更清楚些。Jane craned her neck to look for her mother in the crowd.简伸长脖子张望, 在人群里找她的母亲。She craned forward to look at me.她向前探出身子看着我。Children craned to get close to him...孩子们探着身...
My kids have been brown-bagging it this week.我几个孩子这个星期一直是自带午餐上学。Crystals from the centrifuge are dried and then conveyed to the storage silo or bagging equipment.离心分离出来的结晶经过干燥,然后输送到简仓或装袋设备.Qian Yi Jin pepper 28, the boss...
Keratin is the major protein in hair and nails.角蛋白是毛发和指甲中的主要蛋白质.Immunohistochemical stains were positive for Vimentin, Keratin and EMA to a certain degree.免疫组织化学对波形蛋白(Vimentin) 、 角蛋白(Keratin)和上皮腺抗原(EMA)呈不同程度阳性反应.Ingredie...