Open type hot nozzle: product design and good appearance of steel and accessories with Germany imported material, uniform heating, low cost, good appearance molding products.
开放式：热嘴产品设计外观好与钢材及配件都用德国进口的材质，发热均匀，成本较低，成型的产品外观好。
This paper presents the results and analyses of open water tests of tandem propellers in a nozzle of accelerating flow type.
本文叙述了加速导管中串列螺旋桨敞水试验结果及分析。
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