... operating temperature range；工作温度范围 operating temperature variation；工作温度的变化 operating time；运行[操作]时间 ...
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因此，根据电机绕组工作温度的变化来分析航空电机绕阻的可靠性模型和寿命是十分重要的。
Therefore, according to the variation of the winding temperature analysis of their reliability and life are very important.
如果阀体的材料是可以焊接的，但膨胀系数差异很大，或者工作温度的变化幅度范围较大，螺纹连接部必须进行蜜封焊。
If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey.
(使用)密电压基准会涉及精度变化和特定范围的整个工作温度范围内的初始精度。
Precision voltage references are available with varying degrees of precision and initial accuracy over some operating temperature range.
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