definite-time delay operation [电] 定时限动作
Measured data show, that plastic pads not only satisfy reliable operation of machine in Yantan hydroelectric station, but also have definite potential.
测试数据说明塑料瓦不仅能满足岩滩电机的可靠运行而且还有一定的潜力。
The system shows the users with visual interface, friendly and succinct form, definite meaning of parameter, easy operation.
本系统以可视化界面提供给用户，界面友好简洁，参数意义明确，操作简单。
Objective: To make a definite pathologic diagnosis of spine lesions by the use of ct guided percutaneous biopsy before operation, and evaluate the effects of this method.
目的：探讨脊柱肿瘤术前采用CT监测下经皮穿刺活检获得病理诊断的方法，评价其在脊柱肿瘤诊疗中的作用。
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