Also the elevator complies with the ideal elevator runningcurve, and the motor is accurately adjusted by the vector control software, so it is more comfortable.
而且本电梯是按照理想的电梯运行曲线，通过矢量控制软件对电动机进行精确调节，因而电梯平稳、舒适。
2
A tangent is a straight line that just touches a curve, so the concept of "running the tangents" is to run the shortest distance possible by running straight from one curve to the next.
切线是一条直线，刚好接触到曲线，所以跑切线是从一个弯道跑到另一个最短的距离。
3
Abstract: The derailment safety evaluation test and evaluation standard for railway cars running on curve in Poland are described.