他现在拥有970家连锁食品店.He now owns a chain of 970 food stores.所有的元件严密地连锁在一起.All the units interlock with one another rigidly.这家超大型连锁加油站有各种名牌食品 、 洁净的卫生间 、 友好的服务并且结帐迅速.The hypermarket stations had a wide selection of branded foods...
Because of its trace amount in the nature, it is always prepared by bio - mimetic synthesis methods.昆布氨酸是昆布中一种具有降压活性的 非 蛋白质氨基酸,在昆布中的含量极少,一般采用仿生合成的方法制得.The desulfuration theory of bio combustion is presented.提出生物质型煤的固硫机理,...