新材料供给了一个刺激，但它不会长期。
该系统具有控制精确、功能齐全、可靠性高等特点，适用于包装机械中材料供给控制。
It has characteristics such as higher control accuracy, reliability and versatile etc. It is fit for the material drive of packing machines.
中方认为其限制性条款是出于保护国际有限原材料供给的考虑，同时也考虑到环境保护，防止提取这些原材料带来的污染。
China says its restrictions were motivated by its desire to conserve the world's limited supply of these materials and to protect the environment from the pollution caused by their extraction.
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