1.
female-male reducer
两端分别带有内外螺纹的大小头
2.
A pipe coupling threaded on both ends.
螺纹接头一种两端都带外螺纹的管子
3.
pin-to-pin reducer
两头阳螺纹的大小头
4.
pipe bend with female thread
两头带阴螺纹的弯头
5.
Hexagonal head shoulder screw with adjustable shoulder and thread sizes.
肩和螺纹大小可调整的六角头带肩螺钉。
6.
Line that can have an arrowhead appear at either or both ends. Use the control handle to resize line ends.
一端或两端带有箭头的直线。使用控制手柄可调整端点形状的大小。
7.
Line that can have a double arrowhead appear at either end, or both ends. Use the control handle to resize line ends.
一端或两端带有双箭头的直线。使用控制手柄可调整线端大小。
8.
coupling straigth-way cock
两端带阴螺纹管接的直通旋塞
9.
pepe bend with male and female thread
一头带阳螺纹一头带阴螺纹的弯头
10.
Curved line with an arrowhead at either end. Use the control handle to resize the line ends.
两端都带有箭头的曲线。使用控制手柄可调整端点形状的大小。
11.
reducing extension piece
异径内外螺纹管接头
12.
A Bolt consists of a head and a cylindrical Body with screw threads along a portion of its length.
螺栓是一个带头部并在部分长度上有螺纹的圆柱体。
13.
A tube is a pipe tapered at both ends. Each end is threaded to allow the installation of valves, connections, or relief devices.
管道两端是锥形。每一端都车有螺纹，以安装阀门、接头或减压装置。
14.
" Motor vehicles-Hydraulic braking systems-Pipes tapped holes, male fittings and hose end fittings"
GB/T11611-1989汽车液压制动系金属管、内外螺纹管接头和软管端部接头
15.
A small block of metal or wood with a central, threaded hole that is designed to fit around and secure a bolt or screw.
螺母，螺帽中部有螺纹用于与螺栓或螺钉相配合的小块金属或木头
16.
double pin sucker rod
两头阳螺纹的抽油杆
17.
lead nipple for tubes or pipes
铅螺纹接头,用于大小管的
18.
a short nail with a sharp point and a large head.
带有尖端大头的短钉。