Poly (ethylene terephthalate) (PET) is widely used in the fields of the fiber, film and engineering plastics because of its excellent rigid, heat and chemical resistance properties.
聚对苯二甲酸乙二醇酯(PET)具有高的刚性、耐热性和耐化学药品性等优良性能，被广泛应用于纤维、薄膜和工程塑料等领域。
But the poly resistance has got lower temperature coefficient and lower Sheet resistance than well resistance So we choose the resistance type depending upon the requirements.
但多晶硅电阻有较低的温度系数和低的方块电阻，应根据需要来选择电阻。
The methods for modifying heat resistance of poly(vinyl chloride) (PVC) resins were reviewed, including blending modification, copolymerization modification and chlorination modification, etc.
对聚氯乙烯（PVC）树脂耐热改性方法的研究进行了综述。 PVC树脂耐热改性方法有共混改性、共聚合改性、氯化改性和其他改性。
When placed in the drain of a lateral device or in the collector of a vertical device, the poly-filled trench effectively enlarges the drain or collector region, thereby lowering the ON-resistance.
当放置在横向器件的漏极或垂直器件的集电极中时，多晶填充的沟槽有效地放大了漏极或集电极区域，从而降低了导通电阻。
When placed in the drain of a lateral device or in the collector of a vertical device, the poly-filled trench effectively enlarges the drain or collector region, thereby lowering the ON-resistance.
当放置在横向器件的漏极或垂直器件的集电极中时，多晶填充的沟槽有效地放大了漏极或集电极区域，从而降低了导通电阻。
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