Introduces how to synthesize acrylic acid, acrylate and phenylethene quadripolymer into alcohol-soluble acrylic resin and use it as a link stuff to prepare flexible relief block printing ink.
叙述了丙烯酸、丙烯酸脂、苯乙烯四元共聚合成醇溶性聚丙烯酸脂类的方法，并以其为连结料制备柔性凸版油墨。
Pervasive ice cover for eight to nine months out of the year can block relief ships in case of a blowout.
如果发生井喷，一年中八到九个月无处不在的冰盖会阻挡救援船队。
Meanwhile, well operators considered drilling a relief well: a diagonal well intersecting the original that could be filled with mud or concrete to block the flowing oil
同时，钻井操作员们考虑钻一条减压井：原来的井斜角交错，钻井里可能充满了泥浆或混凝土块，阻塞了石油的通畅。
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