老师的办公桌上有一盆花, 给它起名叫 “ 紫草花 ”.The teacher's desk with a potted plant, since it called'shikonin spent. "目的: 建立烧伤膏中左旋紫草素的质量控制方法.OBJECTIVE : To establish a quality control method for the burn ointment.目的研究紫草油膏的化学成分,探...
Free arrangement is a very important kind of hyperplane arrangement.自由构形是超平面构形中一类重要的构形.The invention of hyperplane kinescopes is another technical innovation.超平显像管的发明是又一次技术革新.Then the method to construct the optimal sepa...
There was an unappealing film of slime on top of the pond.池塘表面有一层黏腻腻的污泥。The pond was full of mud and green slime.池子里满是淤泥和绿色的污水。The snail left a trail of slime along the floor.蜗牛在地板上留下一道黏液....
He is respected as a very aggressive and competitive executive.他是一位锐意进取、竞争意识很强的主管，颇受尊敬。He did not particularly want to take up a competitive sport.他并不特别想从事竞技体育运动。Are your products and services competitive? How about mark...
某些颜料, 由于色素组成成份的性质而导致耐酸性很差.Certain colors, due to pigment ingredients, may inherently have very poor sulfuric acid resistance.耐酸性: 在2.5%盐酸溶液中浸24小时无明显腐蚀现象.Acidoresistant: Without corrode in 2.5 % hydrochloric Acid solution...