螺纹

The most important are as follows: Detection of type: valve stem seal leakage test and test; water valve tightness test; switch tightness test; the take-off safety valve Test; Detection Object: valve, the cut-off valve , safety valve, throttle valve, check valve, swing check valve, ball valve, regulating valve and other hollow pump body, valve body and housing, etc.; way valve connection: flange connection, threaded connection, welding connection; detection medium.

最重要的有以下几种：检测类型：阀门密封性试验及阀杆泄漏性试验；水中阀体密封性试验；开关密封性试验；安全阀的起跳值试验；检测对象：闸阀、截止阀、安全阀、节流阀、止回阀、摆动式逆止阀、球阀、调节阀和其他中空的泵体、阀体和壳体等；阀门联接方式：法兰联接、螺纹连接、焊接联接；检测介质。

Install a listed temperature-pressure relief valve in the remaining fitting.

在剩下的螺纹接头上安装额定温度/水压的安全阀。

Install a listed temperature-pressure relieve valve in the remaining fitting.

在剩下的螺纹接头上安装额定温度/水压的安全阀。

Optional valve for blow-out or filter cap with 1/4 NPT outlet can be purchased separately.

可以另外购买用于吹出的备选阀门或带DN8美国标准锥管螺纹NPT出口的过滤器帽。

C During the process of gas leakage test, emphasis shall be put on stuffing box of valve, flange or screw connection, air relief valve, drain valve, etc..

c 泄漏性试验的检查重点应是阀门填料函、法兰或螺纹连接处、放空阀、排气阀、排水阀等

With the threads facing the valve, slide the union nut over the pipe to which the end connector socket is to be cemented.

将螺纹对准阀门，然后把活接头螺母滑动到管道上，使得端口连接件承插能够被粘固。

OSTEOSYNTHESIS METAL SCREWS WITH ASYMMETRICAL THREAD AND SPHERICAL UNDER-SURFACE.

外科植入物。不对称螺纹和球形底座的接骨用金属螺钉。

Valve ports should have sufficient Butt-clamped turbine-driven three-butterfly valve depth of the American National Standards Institute ANSI thread, or longer weld ports, and valves and pipe fittings in accordance with the United States Manufacturers Standardization Society MSS-SP110 standards for manufacturing.

阀门连接端口应该具有足够深度的美国国家标准协会ANSI螺纹，或加长焊接端口，并按照美国阀门和管件制造商标准化协会MSS-SP110标准制造。

Considering the national situation in china , the water heat exchanger adopts the high efficient screw thread copper tube condenser and plate , the operation is more reliable .

考虑中国国情的水换热器设计，采用高效内螺纹铜管的冷凝器和板式换热器，运行更可靠。

Railway hardware and equipments: all kinds of clip、washers、No.70 rail spike、fi shplate、 anti-loo sen nuts、rail anchor、rail brace、 track jack、torsional spanner, all kinds of screw spike、timber drive spike、rail bolt、fish bolt、type T bolts and other railway parts

国内外铁路及五金器材：各类型号弹条、弹垫、挡板、70型道钉、鱼尾板、防松螺母、防爬器、轨撑、起轨器、防松螺帽专用扭力扳手等器材，各类螺纹道钉、麻花道钉、轨道螺栓、鱼尾螺栓、T型螺栓、等铁路标准件。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失