An isogon is a contour line for a variable which measures direction.

等角线是用于测量方向的变量的轮廓线。

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It defines a set of address Spaces for each pointer variable that is optimally efficient for the C8051 architecture, without any specific direction from the programmer.

它为每个对C8051架构最为有效的变量指针定义了一组地址空间，无需从程序员那里获得特殊指示。

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Unlike the gravitational acceleration, the magnetic acceleration is a location-dependent variable and its magnitude and direction vary with the magnetic circuit configuration.

与重力加速度相比，磁加速度是一个依赖于空间位置的变量，其大小和方向随外磁场的磁路布置发生改变。

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Today, however, the dominant wind is reported to have shifted and wind direction is more variable.

UNESCO: Social and Human Sciences

Any time government tries to force one variable within a free market to a certain value or to move in a certain direction, it destabilizes every other variable.

FORBES: What Kind of Power Is the Most Dangerous?