保持客用电梯和员工电梯的高水平的卫生。
Maintains high standards of cleanliness of all guest and service elevators.
自信和出色的“电梯演说”可以提高推销的水平。
Confidence and a good elevator speech can take any pitch to the next level.
仿真结果表明，最优预瞄控制可以显著地降低电梯的水平振动，性能优于最优控制。
Simulation results show that optimal preview controller suppresses the horizontal vibrations effectively and exhibits superior performance than optimal controller.
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