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1·The conservation of charge corresponds to time symmetry, while conservation of current corresponds to space symmetry.

电荷守恒对应于时间对称性，而电流守恒则对应于空间的对称性。

2·This paper introduces the concept of extended total space, and then we extend conservation of charge and conservation of current to general case.

在文中引入了扩展全空间概念，由此得到电荷守恒和电流守恒的一般形式。

3·This posed a conundrum for researchers working with the laser: How were they to apply the laws of conservation of charge and conservation of energy with two forms of energy output?

这就为研究激光的工作人员出了一个难题：如果能量输出有两种形式，他们怎样运用电荷守恒和能量守恒定律呢？

4·To take charge of works on regional conservation of water and soil; to guide and coordinate the administration and infrastructure construction of countryside water utilities.

负责本区水土保持工作；指导、协调农村水务基本建设和管理。

5·To take charge of works on municipal conservation of water and soil; to guide and coordinate the administration and infrastructure construction of countryside water utilities.

负责本市水土保持工作；指导、协调农村水务基本建设和管理。

6·To take charge of works on provincial conservation of water and soil; to guide and coordinate the administration and infrastructure construction of countryside water utilities.

负责本省水土保持工作；指导、协调农村水务基本建设和管理。

7·To take charge of works on prefectural conservation of water and soil; to guide and coordinate the administration and infrastructure construction of countryside water utilities.

负责本州水土保持工作；指导、协调农村水务基本建设和管理。

8·To take charge of works on district's conservation of water and soil; to guide and coordinate the administration and infrastructure construction of countryside water utilities.

负责本区水土保持工作；指导、协调农村水务基本建设和管理。

9·By substituting the principle of current continuity with charge conservation, the differential equation of charge accumulation model is built.

该理论以电荷守恒原理代替电流连续性原理，建立了电荷累积模型的微分方程。

10·Based on the ampere return circuit theorem, gauss theorem and charge conservation law the concrete form of displacement current is derived. The displacement current is discussed.

本文从安培环路定理、高斯定理及电荷守恒定律出发导出了位移电流的具体形式。并对位移电流作了简单的讨论。