英语语法分析

The products by ESR include 243 designations of steel and superalloy.

产品包括优质合金钢与超级合金243个牌号。

An experimental study on the fatigue crack growth of GH4169 superalloy has been carried out.

本研究中对GH4169高温合金的疲劳裂纹扩展性能进行了试验研究。

The second moment creep time of DZ4 superalloy rapidly decreases with the increasing of temperature and stress.

随着温度的升高和应力的增加，DZ 4合金蠕变第二阶段的时间迅速减少。