ordered product

The various transformations between the ordering products of exponential quadratic operator and its inverse,between the normal and anti normal products of exponential quadratic operator can be relized by discussing three conclusions for the exponential quadratic operator of multi mode boson system.

讨论了有关多模玻色系统指数二次型算子的三条结论，据此，可以方便地实现该类算子的有序乘积同其逆算子的有序乘积之间，以及该类算子的正、反正规乘积形式之间相互转换。

In this study, smoldering of ordered piled corn stalk and wheat straw was investigated via experiments based on previous work.

对有序纵向、横向排列,且堆积密度为50 kg/m~3的玉米秸、麦秸进行了多次重复实验,结果表明:(1)有序堆积的玉米秸、麦秸阴燃床层收缩率和堆积密度间的关系分别为sh=1-ρ×0。