各种光学制品。
残余应力是评价塑料制品品质的一个重要指标，尤其是对高附加值的光学制品。
Residual stress is one of important indexes of evaluating the quality of injection molded parts, especially for optical products.
尤其是在机器设备、塑料制品、石油、电子产品、汽车、光学制品、药品、钢铁和飞机等产品的出口占有巨大的份额。
Especially in machinery and equipment, plastic products, oil, electronic products, automobile, optical products, pharmaceuticals, steel and aircraft and other products export occupies huge share.
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