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- According to the specific characteristics of elevator door machine,a rare-earth permanent magnetic brushless DC motor speed-adjustable system is developed in this paper. 针对电梯门机的使用特点,研制出专用的稀土永磁无刷直流电机调速系统,实现了门宽的自学习、运行参数的修改及按给定曲线调速运行等功能。
- A New Device for Lift Door Machine 一种新型的电梯门机驱动系统
- Door machine variable frequency drive 门机变频驱动
- Research of Door Machine of Video Speaking System 可视对讲门前机系统的研制
- He sprang up and rushed to the door. 他跳起身，跑到门口。
- The machine must break down at this busy hour. 正忙的时候，机器偏偏又坏了。
- The uses of this machine are manifold. 这台机器有多种用途。
- The door shut with a bang after the angry man. 那人愤怒地走出屋把门砰地一声关上了。
- Soft-drive elevator door machine without mechanical link 无机械连杆软传动电梯门机
- The new grinding machine passed all tests. 这台新磨床通过了所有的试验。
- He slammed the door with violence. 他砰的一声猛地把门关上。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔，以便装一把新锁。
- Oil feeds into the machine through this tubing. 油经过这个管子流入机器。
- Some man at the door is asking to see you. 门口有个男人要求见你。
- Did you get a good trade-in on your sewing machine? 你以旧缝纫机折价换新合算吗？
- She woke up with a start when the door slammed. 关门声把她惊醒了。
- I have mislaid my key to the door. 我不知道把门钥匙放到哪里了。
- He slammed the door with a vehement fury. 他愤怒地用力把门关上。
- You may stop the machine by pushing this button. 按下这个按钮你就可以关掉这个机器。
- The queue of prisoners shuffled towards the door. 那队囚犯拖着沉重的步子向门口蹭去。
