那天晚上温度计显示气温降到了零下30度。That night the mercury fell to thirty degrees below zero.最基本的是要能看懂温度计。It is essential that you are able to read a thermometer.这支温度计标有摄氏和华氏两种温度。The thermometer shows the temperature in Celsius and Fahr...
A number of terms are used in various classifications of transplants.移植物的各种分类中应用了一系列的名词.New World frogs; in some classifications essentially coextensive with the family Bufonidae.美洲蛙; 在某些分类中,基本上与蟾蜍科同延.Its tariffs cater f...
颜料经常是各种食物中的添加物.Colour is often an additive in foods.有些食品添加物,生产者认为是有用的.Some food additive are regarded as beneficial by the manufacturer.提供符合营养需求的饲料及饲料添加物.Provide feeds and feed additives that meets the nutritional requir...
The cyclopentadiene is prepared by the thermal cracking of dicyclopentadiene.以热裂解双环戊二烯的方法制备环戊二烯.A flexural oscillation model about V - shaped silicon electro thermal microactuator is presented.提出了V型电热硅微致动器的弯曲振动力学模型.To re...