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1·It shows that SGR is not identically equal to the traditional balance growth, and not just refers to the SGR on sales.

财务可持续增长并非完全等同于传统意义上的平衡增长，也不仅仅指销售可持续增长，它具有更广泛的内涵。

2·During the teaching and research of higher mathematics, we often touch upon the problems about fraction identically equal.

在高等代数的教学教研中，经常要涉及到有关分式恒等问题。

3·When a switch is closed, the voltage across the switch is identically equal zero regardless of the current through the switch.

当它被合上时，不管流经开关元件的电流值是多少，电压恒为零。