过去片子是用石蜡固定到金属板上.Historically, wafers were waxed onto a metal plate.石蜡具有溶解油脂的特性.Paraffin has the property of dissolving grease.石蜡并不是良好的钝感剂.Paraffin , however, is not a good phlegmatizing agent....
He has also dared to take unpopular, but principled stands at times.他有时也会大胆坚持不受欢迎、但却有原则性的立场。He is justly unpopular with all.他不受大家的欢迎是有道理的。He is a man with a reputation for being tough and unafraid of unpopular decisions....
The compound of acryloyl chloride was synthesized by benzoyl chlorid and crylic acid.利用苯甲酰氯与丙烯酸反应制备丙烯酰氯.N - acryloyl morpholine was synthesized from acryloyl chloride and morpholine and the purity of product was 99.5 %.以...
他们从一大盘意大利面中取一些吃。They helped themselves from a large dish of pasta.他吃光了两大盘鸡肉.He demolished two big platefuls of chicken.看起来是一大盘菜, 但几乎一下子就扫光了.It looked a big dish, but it was almost knocked off in no time....