The crystallinity of LDPE increased firstly and decreased later and the crystal defects might increase as drawing rate increased.
随牵伸速率的增大，LDPE相结晶度出现先增加后减小的变化，晶体缺陷增多。
The large diameter mesophase pitch carbon monofiber in uniform size was obtained by controlling the matching of extrusion flow and drawing rate.
熔纺时控制了挤出流量和牵伸速率的良好匹配，获得了丝径均匀的大直径中间相沥青炭单丝。
The limiting drawing rate is a very important index of blank's pressing capability, and it is the basic reference deciding to drawing pressing technology.
坯料的极限拉深系数是一种重要的冲压性能指标，它是决定拉深工艺方法的基本依据。
The limiting drawing rate is a very important index of blank's pressing capability, and it is the basic reference deciding to drawing pressing technology.
坯料的极限拉深系数是一种重要的冲压性能指标，它是决定拉深工艺方法的基本依据。
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