高聚物都是由共价链联接原子而形成的长链分子所组成.Polymers consist of long molecular chains of covalently bonded atoms.同函奉上10箱货物共价5000美元的发票一张.Enclosed we hand you an invoice, $ 5 , 000, for 10 cases goods.另外蛋白质的共价修饰可对某些蛋白质的运动产生影响.Additionally, c...
( 如果环境保护局错过了这一最后限期,就不能对不遵守者施以惩罚.( EPA's failure to meet this deadline may affect its ability to collect penalties for non - compliance.如果环境保护局错过了这一最后限期,就不能对不遵守者施以惩罚.EPA's failure to meet this deadline affect it...