英语语法分析

Carbon fiber is produced by dry-wet spinning of copolymerized PAN followed by preoxidation and carbonization.

本文采用干湿法纺制共聚丙烯腈纤维，并进行预氧化，碳化制成碳纤维。

The result showed that the preoxidation temperature and laying thickness had a critical effect on the properties of the fiber.

结果表明，预氧化温度和铺丝厚度是影响纤维性能的关键因素。

When the time of preoxidation was same, the combining intensity of alloy-porcelain decreased with the time prolonging of degassing.

在相同的预氧化时间的条件下，金-瓷结合强度随除气时间延长也呈递减趋势。