And it become the issue problem which legislators should face firstly that how to edit, or what is the direction of modification and what is the extent to modify.

而如何修改，或者朝着何种方向修改以及修改到何种程度就成为立法者首先应当确定的问题。

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Next initial step length is modified to avoid too great estimation of modification when direction is not ideal.

对初始步长进行了修正，以避免方向不理想时时修正量的过大估计。

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Engineering and high property of universal plastics is the main research direction of polymer modification and novel material exploitation in the world.

通用塑料的工程化、工程塑料的高性能化是目前国内外聚合物改性和新材料开发的主要研究方向。

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