According to the production practice and advanced technology at home and abroad, alloying process of Si element is discussed in respect of Si characteristic in aluminium alloy.
针对铝合金元素硅的特点，结合生产实际和目前国内外先进技术，对元素硅的添加工艺进行了探讨。
Smiths Detection, part of the global technology business Smiths Group, announced the first deployment of its Advanced Technology (AT) x-ray systems in the United States.
史密斯探测公司是全球技术商业史密斯集团的一部分，日前，该公司宣布了其先进技术x射线系统在美国的第一次部署。
Smiths Detection, part of the global technology business Smiths Group, announced the first deployment of its Advanced Technology (AT) x-ray systems in the United States.
史密斯探测公司是全球技术商业史密斯集团的一部分，日前，该公司宣布了其先进技术x射线系统在美国的第一次部署。
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