究竟平衡作用发生在铬铁矿和硅酸盐下沉之前,还是在其后?Did equilibration take place before or after setting of chromite and silicates?如果脱模剂发粘, 则减少硅酸盐.If the mold spray is sticky, reduce the silicate.硅酸盐矿物的特点是耐熔和难以分离.Silicate minerals are characteri...
The product may form the feedstock to a subsequent refining process.产品可以作为原料去进一步加工.Hydrogen is an important feedstock used in petrochemical enterprises � � hydrogenation process.氢气是石化企业加氢工艺的重要原料.The new visbreaking proce...
他们还留下了一张名片，上面印着肖恩·林奇的名字。They also left a card, imprinted with the name Sean Lynch.比利·沙利文给我留下的印象是他是个很不错的人。Billy Sullivan had impressed me as a fine man.可以把你的信息或标志印在信纸上。Stationery can be imprinted with your message or logo...
鹟主要以有翅昆虫为食。Flycatchers feed primarily on winged insects.这只鸟迅速拍动双翅,继续飞行.The bird beat its wings rapidly as it flew on.羽毛最初由昆虫的翅瓣演化而来.Feathers initially developed from insect scales....
But, of the vertebrates, unpredictable Nature selected only snakes ( and one lizard ).但是, 在脊椎动物中, 神秘莫测的大自然只选择了蛇 ( 和一种蜥蜴 ).Environmental hormone is a kind of external chemical substance which incretion of human beings and...