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rare-earth metal catalyst
释义
rare-earth metal catalyst
Encyclopedia
理学
稀土催化剂
释
rare-earth metal catalyst
稀土催化剂
含有稀土元素,并在单组分或活化剂作用下,能够催化烯烃和双烯烃等单体聚合反应的配合物。
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ungerade state, u-state
UN Global Road Safety Week
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unguided medium
unguifer
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ungula
ungula of a cone
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ungula of the cylinder
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UNI
uni-
UNIA-ACL
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