The fuberidazole was prepared by reaction of O - phenylenediamine with furfural at the presence of CTMABas catalyst.以邻苯二胺和糠醛为原料,以十六甲基三烷基溴化铵(CTMAB)为催化剂合成了麦穗宁....
我在熟食店买了一些意大利香肠.I bought some salami from the delicatessen.熟食店9时关门.The delicatessen closes at nine o'clock.一些小店和熟食店专营奶酪.Small stores and delicatessens specialise in cheese....
The bus is said to have over-turned and fallen into a ravine.据说巴士发生翻车，跌进了峡谷。Heave the rocks into the ravine.把这些石头扔进深谷里.The soldiers shot down into the ravine.士兵们向深谷里射击....
溶液里的维生素比固体食物里的维生素受到的影响更大。Vitamins in solution are more affected than those in solid foods.将硫酸盐加入该溶液会产生沉淀.Adding sulphate to the solution will give a precipitate.水能把樟脑从其酒精溶液中淀析出来.Water precipitates camphor from its alcoho...
纹理:木头的纤维组织的排列 、 方向或图案.The arrangement, direction, or pattern of the fibrous tissue in wood.用力在表面上加印 ( 标志或图案 )To produce ( a mark or pattern ) on a surface pressure.印,盖印用力在表面上加印 ( 标志或图案 )To produce ( a mark or pattern ) o...