The research on multi-dimensional conservation laws is one of the most challenging direction in the field of nonlinear partial differential equation, it is very important and very difficult.
高维守恒律方程的研究是非线性偏微分方程的最具有挑战性的方向之一。
Its conservation law encompasses both its magnitude and its direction.
它的守恒定律包括大小和方向两方面。
According to pyrology test, this article has analyzed energy conservation direction and step of electrode graphitization stove.
通过热工测试，分析了电极石墨化炉的节能方向与步骤。
There is an active research direction, process intensification in chemical engineering, with the goal, energy conservation.
在化学工程领域，有一个活跃的研究方向一化工过程强化，其目标是节能。
Objective mechanism mainly including incentive and restraint mechanisms its main role is to ensure that conservation-oriented society to achieve the right direction and goals.
目标机制主要由约束机制和激励机制构成，其主要作用就是保证节约型社会的方向正确和目标实现。
At the same time, I agree with the comment above, resource conservation is another direction that China should take seriously.
同时，我同意上面的评论，节能是中国应该重视的另一个方向。
China's oil output for the current urgent need for energy conservation, the energy-saving pumping unit change direction by ratchet has important theoretical and practical value.
针对目前我国油田增产节能的迫切需要，棘轮换向节能式抽油机具有重要的理论意义和实用价值。
China's oil output for the current urgent need for energy conservation, the energy-saving pumping unit change direction by ratchet has important theoretical and practical value.
针对目前我国油田增产节能的迫切需要，棘轮换向节能式抽油机具有重要的理论意义和实用价值。
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