valid trace

基本解释

The corresponding strategy is valid for all targets moving in linear trace with constant velocity at sea.
相应的定位方案适用于海上匀速直线运动的目标模拟。
Valid chemistry composition of Chinese traditional medicine was not only organic component but also trace element, in fact it was Coordination compounds that compound by them.
中药有效化学成分既不单纯是有机成分，也不单纯是微量元素，而主要是由两者组成的配位化合物。
Focus on the solution how to use stack technology to assist the eight neighborhood search process to trace the two valid contour lines, and then obtain the sub-curves and their characteristics points;
重点讨论如何使用堆栈技术辅助八邻域搜索过程，以便对两条有效轮廓线分别进行轮廓跟踪，从而获取分段曲线及其特征信息；