piped stem是什么意思

用法例句

The schemes of forming technology for straight tubular part were analyzed and contrasted.

对直筒形工件的成形工艺方案进行了分析比较,根据拉深-翻孔复合成形的变形规律,通过采取一定的工艺措施,可对复合成形进行有效控制,既可获得所需要的工件形状与尺寸,又能提高材料利用率。

Comparison of straight cylinder type and Y type strainers;

直筒式水过滤器与Y形水过滤器的比较

Experimental investigation of the gas flow field on top of the discharged tube of cylindrical three-phase cyclone with a vaned inlet and a direct-current outlet;

直筒型导叶直流式三相旋流器排气管上部内流场的实验研究