The handles have extra weight built in to provide more control for those with limited hand control or tremors.
把手有额外的重量，以提供更多的控制或有限的手颤抖的控制兴建。
It changes the disadvantage that drum or CAM controller in relay control total steps, output points are limited, large volume and weight, high costing.
改变了继电器控制系统中机械式的鼓形控制器或凸轮控制器步数和输出点数有限、体积大、重量大、成本高的缺点。
He cautioned that the study was limited by its small size and the lack of a control group of obese people who did not lose weight.
他提醒说，这项研究的局限性在于规模小，没有对照组，也就是没有一组未参加减肥的肥胖者。
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