variable control limit的意思|示意

When the traffic demand is too high that ramp metering is not effective anymore, the variable speed limit control is needed to relieve the congestion.

但是当高速公路严重拥挤时，匝道控制不再有效，需结合主线可变限速控制，以缓解交通拥挤。

When the arm runs to the upper and lower two limit position, respectively press the lower limit switch, cut off the main control circuit, variable amplitude motor parking, to limit the role.

当臂杆运行到上下两个极限位置时，分别压下限位开关，切断主控电路，变幅电机停车，达到限位的作用。

Therefore, an effective combination of ramp metering and variable speed limit control is important to achieve a good performance.

由此，匝道调节率与可变速度限制间高效的联合控制对于提高道路性能显得尤为重要。

This paper discussed a few research method about physical chemistry, such as scientific abstract, ideal mode, essential show, limit inference, relative number, variable control and so on.

本文讨论了物理化学中的几种研究方法，如科学抽象法、理想模型法、本质揭示法、极限外推法、相对数值法和控制变量法等。

The critical problem in highway systems was discussed, and action of the main variable speed-limit control of the surveillance and control system of highway was analyzed.

阐述了高速公路运行中存在的主要问题，分析了可变限速控制在高速公路监控系统中所起到的作用。

Because of the limit in modern industry sites, the frequency of the process variables detect is different. We can resolve the problem by multi frequency and multi variable control.

在工业现场由于条件的限制，很多过程变量需要的检测频率并不一样，从而带来了多频多变量的控制问题。