When spodumene was added in the products, the cause for reducing firing temperature, enhancing mechanical strength and heat-shock resistance, possessing good chemical stability was clarified.
阐明在制品中添加锂辉石,能降低烧成温度,提高机械强度,抗热振性以及具有良好的化学稳定性的原因。
Cod and haddock in the Barents Sea have been found to flee the area when air guns start firing, drastically reducing fish catches for days.
当气体枪开火,巴伦支海洋里的鳕鱼和黑鳕鱼离开了这个区域,数天内大量减少捕鱼数量。
Trajectory deflection correction by miniature pulse thruster groups is an efficiency method of improving rocket projectile firing precision and reducing the scattering of impact point.
采用小型脉冲推力器组修正弹道偏差是提高火箭弹射击精度,减小落点散布的有效方法。
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