供给水轮机模型试验的水泵由一个卧式离心泵组成，由一个整流器自控制的变速电机带动。
The pumping unit supplying the tested models consists in one horizontal shaft centrifugal pump driven by a variable speed D. C. motor itself controlled by a thyristor speed drive.
长城红外秉承“用高科技带动营销链”的理念，有效发挥了科技力量的带动作用，产品结合和运用了德国杜雷技术，并通过了德国图林根试验室的测试，其中部分专用型号符合美国军用标准。
By the principle of "high-tech lead ship sales ", many of the products implement Germany DULLY technology and pass Germany TLG lab test. Part of the models match U. S military standard.
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