A dark red stain was spreading across his shirt.一块深红色的污渍正在他的衬衫上渗开。She couldn't rub off the blood stain on her blouse.她没法将上衣的血渍擦掉.The damp rising from the ground caused the walls to stain badly.地面上升起的湿气使墙壁的颜色变得很难看....
Nothing but a great many epithelial cells was observed in the stain.染片中只观察到有大量的上皮细胞....a black stain.黑色污迹A dark red stain was spreading across his shirt.一块深红色的污渍正在他的衬衫上渗开。PAS stain Histoplasma capsulatum infection in the...
30 percent of reptiles, birds, and fish are currently threatened with extinction.目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。The rate of inflation is running at about 2.7 percent.通货膨胀率大约为2.7%。Last year, economic growth tailed off to below ...
主要从自动测厚装置、自动分析控制系统、辊筒间距调节机构三个方面论述该自动调距方案.The paper introduces the auto controlling of adjusting the gap between two rolls for calender.本课题要研究的就是一款带自动测光 、 自动卷片 、 自动曝光功能的全自动单反相机.The subject for study is a kind of automatic...