... low pressure acquittal低压放电 low quartz低石英，低水晶 low acceleration accessory低速齿轮 ...
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在一般的煤的样板中，石英和其他矿物质的含量是相当低的。
In normal coal samples, quartz and other minerals are found only in trace amounts.
超细石英粉经热压成型(HP)制成红外陶瓷材料，工艺简单，原料成本低。
Infrared ceramics material is prepared using HP ultrafine quartz powder in a simple process and at low cost.
石英纤维增强双马来酰亚胺树脂复合材料具有低介电损耗、耐高温、耐湿热及良好的力学性能。
Quartz fibre strengthen Bis maleimide BMI composite material have low to dielectric loss angle, able to bear high temperature, damp and hot, good mechanics performance.
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