The advantages and disadvantages of typical chemical methods were analyzed.
阐述了常用的化学方法改性的优缺点。
Some of the most typical chemical engineering problems lie in the field of mass transfer.
化学工程中一些最典型的问题在于传质领域。
Some typical chemical structures of curing agent and their synthesis processes are introduced.
介绍了这三类含磷固化剂的典型化学结构以及它们的合成。
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