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1·Tapered pipe processing equipment.

锥形钢管加工设备。

2·Not just an added reinforcing ring, this unique pre-compression design compensates for expansion forces generated from normal tapered pipe thread joint make-up.

不仅仅增加了加固环，这种独特的预压缩结构能够抵消常规锥形管道螺纹连接结构所会产生的膨胀力。

3·The standard covers dimensions and gaging of plastic tapered National Pipe Threads (NPT) for leak-tight joints, and it is now referenced in all ASTM Standards for plastic piping products.

这个标准涵盖塑料美国锥管螺纹(NPT)的尺寸和计量方法，用于泄漏密封连接，现在已在所有有关塑料管道产品的ASTM标准中引用。

4·The inlet of the grilling pipe is connected to an upper portion of the tapered hole , and the air discharging pipe is connected to a lower end of the tapered hole .

烧烤管的入口连接到锥形孔的上部，并且排气管连接到锥形孔的下端。

5·Based on the experiment, a mathematical model between the quantity of air drawing and the diameter of auxiliary pipe for the tapered t branch has been established.

在试验的基础上建立了锥形三通抽气量与辅助管管径的数学模式，与孔板三通比较，锥形三通具有抽气效率高、动力消耗低等优点。