The reactive species, which may be a free-radical, adds to a monomer molecule by opening the p-bond to form a new radical.
这个带有自由基的反应种通过打开双键加入到单体分子上，从而形成新的自由基。
We have large order this time, we hope you can agree to D/P terms, for we have to pay a deposit in opening a letter of credit that is time-consuming and costly.
考虑到我们订单数量很大，希望你们能接受付款交单的付款方式，因为开信用证既耗时间又费钱。
The results show that brittle fracture occurs in matrix and the P-WCMOD(crack mouth opening displacement) curve is linear till loading to failure.
实验结果表明：水泥基体发生脆性断裂，从加载到试件破坏P-WCMOD曲线一直呈线性；
There is no significant difference about the time span from withdrawal to spontaneous breathing recovery, but the eye opening recovery time of group B is much longer than that of group A(P<0.05).
两组在停药至自主呼吸恢复的时间差异无统计学意义，而B组的睁眼恢复时间却较A组显著延长（P<0.05）。
Following a day of gray haze and searing heat, the Opening Ceremonies for the Beijing Games began shortly before 8 p. m. Friday with an enormous display of fireworks.
周五北京又是一个闷热的阴天，接近晚上8点的时候，开幕式在一场令人叹为观止的烟花燃放中拉开了序幕。
Following a day of gray haze and searing heat, the Opening Ceremonies for the Beijing Games began shortly before 8 p. m. Friday with an enormous display of fireworks.
周五北京又是一个闷热的阴天，接近晚上8点的时候，开幕式在一场令人叹为观止的烟花燃放中拉开了序幕。
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