Making use of multi-well method, the quantity of rock salt mining is more, the concentration of brine is higher, and the shape of cavity is regularer than others.
由于群井连通法岩盐开采量大，采出卤水浓度大，溶腔形状比较均匀，目前成为了国内外水溶采矿的一种发展趋势。
Experiment methodology that measures the nozzle pressure of different molds has been proposed which proved that there existed the internal relationship between nozzle pressure and shape of cavity.
通过实验的方法测量出不同模具的喷嘴压力曲线，证实模腔几何形状与喷嘴压力之间存在确定的关系。
Involute profile of internal gear, in the small gear and internal gear intermediate have a crescent shape of the diaphragm, the purpose is the oil absorption cavity and pressure oil cavity off.
渐开线齿形的内啮合齿轮，在小齿轮和内齿轮中间有一块月牙形状的隔板，目的是把吸油腔和压油腔隔开。
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