守恒

And through these estimates , we prove the local well-posedness of modified Korteweg-de Vries equation in a quarter plane.

在第三章中我们证明了&几乎守恒律&，从而证明了非线性Davey-Stewartson方程在空间H~s(R~2)(这里s＞4/7)整体适定性。

According to conservation of energy,when Joule-Thomson effect on natural gas and friction heat of liquid are considered,a temperature drop formula to calculate multiphase pipeline is deduced.

根据能量守恒原理，既考虑天然气的焦耳—汤姆逊效应，又考虑了液体的摩擦生热，推导出了计算多相管流温降的理论公式。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。