The merits of polymer are its high strain, good tenacity and easy making. The merits of ceramics are its excellent heat-proof and abrasion-proof.
塑料模具的优点是强度高、韧性好、易于制作，陶瓷模具的优点则是耐热性好、耐用性好。
Through analyse and discuss, chief ball proof mechanism of the ceramics is cut mechanism and sharp by oneself affect.
通过分析讨论，其主要抗弹机制为犁削机理和自锐作用。
My factory productions quartz sand mainly uses in the glass, fire-proof material, smelting ferrosilicon, flux, ceramics, abrasive substance, casting.
我厂生产的石英砂主要用于玻璃，耐火材料，冶炼硅铁，冶金熔剂。
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