...合成为相应合成前内皮素原（pre—pro ET），后者在内肽酶和羧肽酶的共同作用下水解成内皮索原（pro—ET）或称大内皮素（big ETs），大内皮索在内皮索转化酶（endothelin converting enzyme，ECE）作用下水解Trp21一Val22之间的肽键产生ET，ET分子结构是由2个二...
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Most of Europe’s big emitters, such as power generators and heavy industry, are included in the ETS, which means that they are allocated emissions permits which they can buy and sell.
多数欧洲的重点排放产业，如发电厂和重工业，都被纳入了这个体系。 这意味着他们都被分配到定额可以自由买卖的排放许可。
Most of Europe's big emitters, such as power generators and heavy industry, are included in the ETS, which means that they are allocated emissions permits which they can buy and sell.
多数欧洲的重点排放产业，如发电厂和重工业，都被纳入了这个体系。这意味着他们都被分配到定额可以自由买卖的排放许可。
Low, medium and high voltage, standard, Use in big screen color-TV, frequency conversion air conditioner audio circuits, ets.
低中高压，焊针式标准品，可用于大萤幕彩电、变频空调、音响等电子线路中。
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