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The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.

介绍了目前用于含聚双节聚合物氢催化剂，讨论了SBS氢机理及氢动力学研究进展。

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doomful, doomsayer, doomsday, doomsten, doomster, doomwatcher, doomy, door, door handle, door jamb,

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3G, 401(K), a,

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原声例句
FLLL2 Level 2 语法课本

The middle link should be yellow or white.

中间链节色或白色。

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暗藏杀

Who was this man who held in his finger these curiously variegated links of an unknown chain?

这个手指上拿着知链的这些奇特的杂色链节的人是谁？

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door-to-door, doorward, doorwards, doorway, doorways, doorweed, dooryard, doozer, doozy, DOP,

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3G, 401(K), a,
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