连接杆

Based on the column deflection curve method,the paper analyzed the effect of semi-rigid connection to the effective length of compressed web members in the cold-formed thin-walled steel truss.

本文通过柱挠度曲线法，分析了连接半刚性对冷弯薄壁型钢桁架中受压腹杆计算长度的影响。

"Derrick:a machine for hoist ing and moving heavy objects, consisting of a movable boom equipped with cables and pulleys and connected to the base of an upright stationary beam."

悬臂起重机：提升和移动重物的机器，它由一个带有缆绳和滑轮的可移动的、并与一根由向上静止横梁的底座连接的起重杆组成。

In view of have an advantage in technology and resources, the ratio of properties and price has extreme competition. It mast be lay a solid foundation on technology and material for our rock drilling tools industry represent by integral drill steels and extension rods to move towards the world.

由于其所拥有的技术、资源优势和极具市场竞争力的性价比指标，将为以硬质合金整钎和重型螺纹连接钎杆为代表的我国长钎具工业走向世界，奠定了坚实的技术和物质基础。

Hollow rock drill steel ; geometrical structure parameter ; kind of steel ; guality of steel ; rolling technology ; integral drill steels ; extension rods ; ratio of properties and price

中空钎钢；几何结构参数；钢种；钢质；轧制工艺；硬质合金整钎；螺纹连接钎杆；性价比

A third kelly cock is generally kept on the drill floor to be used in the drill string in the event flow up the drill string occurs while making a connection or tripping pipe.

第三个方钻杆旋塞通常保留在钻台上，当连接或起下钻时发生钻柱内向上流动的情况下用于钻柱。

In order to resist the buoyancy more than60 prestressed anchor bars are used to connect the baseplate.

为抵抗地下水的浮力，采用60多根预应力锚杆与底板相连接。

This is accomplished by piercing the diaphragms and mechanically connecting the upper and lower stems.

这是通过穿透横膈膜，把上下阀杆机械地连接在一起来实现的。

This is accomplish ed by piercing the diaphragms and mechanically connecting the upper and lower stems.

这是通过穿透横膈膜，把上下阀杆机械地连接在一起来实现的。

It is connected to both the feed rod and the lead screw and enables selecting a variety of feeds easily and rapidly by simply shifting the appropriate levers.

它是连接到了饲料杆和丝杠，使选择不同的饲料容易和迅速，只需把相应的杠杆。

"When bolt ing to steel flanges, longer bolt s or stud may be required."

当用螺栓与钢法兰连接时，可能需要更长的螺栓或螺杆。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。