The inertial system of fighting vehicle existed bracket error due to its two-axis gyro platform structure, and this could influence the heading precision.
战车用惯性定位定向系统由于采用双轴陀螺平台结构，不可避免地存在着支架误差，从而影响系统航向精度。
Methods of spherical trigonometry and direction cosine matrix were applied respectively to derive the bracket error, and the two methods had the same error formula and the same calculation results.
应用球面三角法和方向余弦矩阵法分别推导出双轴陀螺平台的支架误差公式，发现由这两种方法推导出来的公式计算结果是一致的。
If the empty bracket pair is omitted, it is an error, but an error that the compiler is unlikely to catch; the program may fail at run time.
如果遗漏了空方括号对，这是一个编译器无法发现的错误，将导致程序在运行时出错。
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