Abstract: The kinds, structures and catalytic properties of polymer metal catalyst for hydrosilation were reviewed.文摘: 综述了硅氢加成反应中高分子金属催化剂的种类 、 结构及其催化性能....
Consular invoices are declarations made at the consulate of the importing country.领事发票是进口国领事馆签发的一种申报书.Multiform inspections and quarantines are needed when palm oil is importing.我国与马来西亚有大量棕榈油进口贸易,检验检疫工作繁重且多样.Import quota...
Some physiologists infuses sugar solutions into the veins of animals.有些生理学家向动物的静脉中注射糖溶液.Immunoassays are the tests physiologists have traditionally used in such studies.免疫测定法是生理学家在类似研究中传统使用的方法.Quite unexpectedly, vertebr...
许多男孩子在7月4日那天放爆竹.Many boys explode firecrackers on the Fourth of July.桌上每个位置旁都有彩包爆竹.There was a cracker beside every place at the table.爆竹没响.The firecracker didn't go off....
Freud postulated that we all have a death instinct as well as a life instinct.弗洛伊德曾假定我们所有人都有生存本能和死亡本能。He postulated that the carbon reacts initially with the sulfate to form calc ium sulfide.他认为碳最初和硫酸钙反应生成硫化钙.They postul...