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- The roof was braced with four poles. 屋顶由四根柱子支撑。
- It specialized in professional productions of Condenser Shaded Pole Motor, Mxier Motor and Carbonic Acid Pump Motor for the use of CoCa-Cola and Pepsi cooler. 专业生产可口可乐、百事可乐冷机使用的冷凝风机、莫尔搅拌电机、碳酸泵电机。
- Currently, the world shipbuilding industry has been to demonstrate Korea, Japan, China and Europe and other parts of the new four pole structure. 目前，世界船舶工业已呈现出韩国、日本、中国以及欧洲与其他地区的新四极结构。
- Simplex winding double speed asynchronous motor is easiest and widest polechanging control method among the change pole motors. 摘要单绕组双速异步电动机是变极电机中方法最简易、应用最广泛的一种变极调速方法。
- changeable torque variable pole motor 变扭矩变极电机
- four pole network measuring unit 四端网络测量器
- Flat surface four pole organization 平面四杆机构
- equivalent noise four pole network 等效噪声四端网络
- The experiences of teaching“Hinged chain four poles structure” better by teaching tool are introduced. 介绍了利用教具等手段，讲好“铰链四杆机构”的教学经验。
- A New Mathematic Model of the Shaded Pole Motor with a Step Air Gap 阶梯气隙罩极电动机的新数学模型
- One equivalent distributed winding acts for the concentrated winding, so the step air gap is changed into uniform gap. And analysis of shaded pole motors with rotating fieled theory is very simple. 提出等效分布绕组的概念,用一个等效的具有正交分布的绕组代替阶梯气隙罩极电动机的集中绕组,将气隙处理成均匀气隙,然后用旋转磁场理论进行分析,给出一种简单的适合工程计算的方法。
- Verification of High Precision Four Pole Magnetic Die 高精度四极磁铁冲模的验证
- On the Calculation of Parameters in a Shaded Pole Motor with a Step Air Gap 阶梯气隙罩极电动机的参数计算问题
- Visualization of Reverse Four Pole Hydraulic Support Based on VB 基于VB反四连杆液压支架可视化实现
- It is clear to all of us that two plus two is four. 二加二等于四对我们大家都很清楚。
- He wove four plots together into a novel. 他把四条情节编成一部小说。
- We have tea at four o'clock in the afternoon. 我们在下午四点钟喝茶。
- The town boasts four swimming pools. 这座城镇以拥有四个游泳池而自豪。
- Our football team won by four goals to nil. 我们的足球队以四比零取胜。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
