前臂、后臂、辅臂以及插件与主杆之间为活动连接， 均可折叠于主杆上。
The front arm, the rear arm, the auxiliary arm and the plug-in are movably connected with the main rod and can be folded on the main rod.
本实用新型公开了一种主杆可弯折的伞，旨在提供一种结构简单、使用方便的主杆可弯 折的伞。
The utility model discloses an umbrella, the trunk of which could be bended, and aims to provide the umbrella with the bended trunk which is simple in structure and easy to use.
本实用新型提供一种整体式采油气树，其特征是四通和相互连接的主杆为一个空心长方体的整体锻压件；
The utility model provides an integral petroleum production tree, which is characterized in that a pipe cross and mutually connected main bars are a hollow and cuboid integral forging piece;
主杆上的两个挂钩也可以随意自由调节高度，方便各种挂衣要求；
The height of two hooks on main pole can be flexibly adjusted for different hanging requirements.
主离合器通过行走轮驱动轴连接、主离合器操纵杆连接至插植机构。
A main clutch is connected through the driving axle of the walking wheel, and the operating rod of the main clutch is connected to the planting device.
主挂钩下部与挂衣杆对称地铰接在一起。
The lower part of the main hook is symmetrically hinged with the clothes hanging rod.
为了使上层公路桥面板能帮助主桁上弦杆抵抗巨大的纵向压力，正桥全部采用混凝土桥面板与钢桁梁共同作用的板桁结合梁。
In order to let the slabs help the top chords of the steel trusses resist the giant compressive forces, slab truss composite structures are used throughout the main bridge.
附加弯矩导致桅杆的后背主弦杆受拉，传统的螺栓连接方法显得薄弱。
The additional bending moment results in the pulling state of rear back rod of the mast and the conventional bolt connection seems to be very weak.
选手可以使用球杆的任何部分移动主球，包括杆头，但不得有向前的击球动作。
Players may use any part of the cue stick to move the cue ball, including the tip, but not with a forward stroke motion.
针对塔式起重机标准节主弦杆因材料批次不同焊接后尺寸不同的问题，提出对塔式起重机标准节主弦杆焊胎的改进方法。
To solve the problem of the variety of the main rod's size after welding to adjustable tower crane standard section, because of the difference of the material batch, a novel approach is proposed.
指出传力杆模型对模态频率和主振型有直接影响，动力分析中应当考虑接缝的剪力传递和弯矩传递。
The transfer of shearing and moment must be considered in dynamic analysis because the model of dowel bar affects the modal frequency and modal shape directly.
主汽门阀杆及调节汽阀阀杆漏气，前后汽封疏水等都引入集水管再排入地沟。
Stem steam leakage from main stop valve and governor valve, drainage of front and rear steam sealing, etc shall all be directed into the conduit, and then be discharged into the gutter.
本文根据汽车车架结构的特点，应用薄壁杆系有限单元法，对汽车车架的固有频率和主振型进行了计算。
This paper gave the computer simulation of natural frequencies and vibrational modes of truck frames, based on the structural features of the frame, by finite element method of thin wall rod system.
其中，主涂覆剂与硬化剂的混合比根据混合比控制杆的上端部分在主轴上的位置进行调节。
The mixing ratio of the main coating agent and the hardening agent is adjusted depending on the positions of the upper end portion of the mixing ratio control shaft on the spindle.
吊索在吊点处不得有滑移和脱落，个别吊索应连接在被吊装结构的节点上，不得衔接在主弦杆中部和腹杆上。
There shall be no slip and fall off in the sling hanging point, individual sling should be connected in the hoisting structure nodes, no cohesion in the main chord and web members on the middle.
对于下承式钢箱系杆拱桥来说，主梁是结构设计的关键部位。
The steel-box girder of the tie-bar arch-bridge is the key part in the structural design.
对于下承式钢箱系杆拱桥来说，主梁是结构设计的关键部位。
The steel-box girder of the tie-bar arch-bridge is the key part in the structural design.
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