minimum economic thickness 最小工业厚度
economic thickness of insulation 绝热层经济厚度
economic thickness methed 经济厚度法
economic thickness calculation 经济厚度法
economic insulation thickness 经济保温厚度
economic thermal insulation thickness 经济保温厚度
economic wax deposition thickness 经济结蜡厚度
It is an accurate and economic way to use ultrasonic to measure liquid level, material level and thickness and topography under water.
利用超声波检测液位、料位、厚度和探测水下地形是一种准确、经济的方法。
Define horn fruit layers of thickness and horn fruit layers of density rape important colony quality index; it is the comprehensive economic indicator too.
明确了结角层厚度与结角层密度是油菜重要的群体质量形态指标，也是综合性经济指标。
Meanwhile, the economic flow rate, optimum diameter and economic insulating layer thickness of the equipment and pipeline have been obtained with the model, which provide a basis for pipeline design.
该模型将同时得到经济流速、设备及管道最佳直径和经济保温厚度，可作为管道工艺设计的基础；
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