Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.In 2002, we develop Photo - catalyst & electronic Ionizer A...
The warehouse will hold more than 90,000 pallets storing 30 million Easter eggs.那间仓库将用9万多个货盘装3,000万只复活节彩蛋。A crane was already unloading crates and pallets.起重机已经开始卸载板条箱和托盘了。If you are for export, these pallets are custome...
非暴力和忍耐是他们的信仰的核心原则。Non-violence and patience are the central tenets of their faith.在他漫长的一生中，他对基督教信仰始终是一种摇摆不定的态度。He maintained an ambivalent attitude to the Church throughout his long life.他们强烈感受到他们的宗教信仰与政治体制不相称。They feel ...
Husband and wife are now taxed separately on their incomes.现在夫妻双方分别按各自的收入纳税。They are still having to live on very low incomes.他们现在还得靠微薄的收入过日子。More than half of all households report incomes above £35,000.半数以上的家庭申报收入超过35,...
The asphalt playgrounds have been grassed over or sown with flowers.原来的柏油操场已经覆上了草皮或种满了鲜花。He has sown coffee on part of his acreage.他在自家的部分耕地里种上了咖啡。We sowed our vegetable seed yesterday. Have you sown yours?昨天我们播下了菜籽, 你也播...
他们非常尊重埃及人的宗教, 并确定了埃及祭司的地位.The Ptolemies respected Egyptian religion, and confirmed the priests in their positions.祭司用一只鸡作祭品。The priest sacrificed a chicken.祭司们的工作是管理工业、农业和商业.The conscientious scribes regulated agricultur...