然而经典的生产库存模型并不考虑容量可变性，而是假定机器在单位时间内的生产量是恒定的常数。

However, the classical production inventory models do not take volume flexibility into account, machine production rate is usually assumed to be a constant.

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采用如上配方加工出来的微波介质材料，具有高Q值、中介电 常数的优点，生产重复性能好。

The microwave dielectric material has the advantages of high Q value and medium dielectric constant, as well as high production repeatability, adjustable temperature coefficient.

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还考查了这一常数在工艺生产管理控制中的应用，即对主腐蚀体系的稳定和容量水平的控制。

Application of this constant in productive and technological control. namely in stabilization of principal etching system and control of capacitance level is introduced.

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