杆

A new-type bike features that its pedal crank has an arc rack bar acting on the ratchet gear in single direction and in turn driving the drive chain wheel, a reset unit composed of crank mechanism is used to make left and right pedal cranks be pedaled alternatively, and its front movable saddle plate is connected via connecting rod to pedal crank for making rider comfortable. Its advantages are high drive performance and efficiency and saving labour.

一种新式自行车，其最大特点是蹬踏杆上含有一弧形齿条，由该弧形齿条上的轮齿作用于具有单向离合的棘齿轮，从而带动主动链轮转动，由曲柄机构组成的复位器使左右蹬踏杆能够交替连续踩踏以驱动自行车行驶，前活动座板与蹬踏杆由连杆相连结，从而实现同步摆动给以乘骑者踩踏感到舒适，该发明具有传动性能好，效率高，力损耗小等优点。

Depending on the general solution of the vibration of system given in the front, considerate that the nature wind is always in a gust form, model the load of wind on the canopy and trunk of tree as a impulse load on the free end of the staff, and gets the responses of vibration under these conditions, then picture the curve of the vibration.

根据之前得到的系统振动通解，考虑自然风多呈阵风形式的影响，将作用在树冠和树干上的风载简化为作用在弹性杆自由端质量团处的脉动载荷，进而分析并得到此条件下杆的振动响应，绘出此情况下杆的振动响应曲线。

With the approaching of Economy-globalization Process, SCCC synchronously implements CompAir's global strategy in China market which provides products with leading compressor technology, including oil-free rotary screw air compressor, water-sealed oil-free rotary screw air compressor and SR switched reluctance variable speed screw compressor.

随着经济全球化进程的逐步推进，公司与母公司同步实施全球性产品和营销策略，向中国市场提供领导压缩机技术的最新产品，其中有无油式螺杆压缩机、喷水式无油螺杆压缩机和SR系列磁阻开关式调速螺杆压缩机等。

By element analysis, we realized that the prestressed anchor rod wall can control the horizontal displacement better than the anchor rod wall, we advanced the distribution of the axial force of bonded zone.

指出预应力锚杆挡土墙较锚杆挡土墙能更好地控制边坡的水平位移，得到了预应力锚杆轴力分布的特点。

Proposed is the construction of an innovative vibration-proof baffle rod element along with a simplified model for the unitary flow duct of this construction.

提出了一种新型抗振折流杆元件的结构，并对该结构的单元流道提出了简化模型，用数值方法模拟了夹持式折流杆支撑的单元流道内的流动和传热状况，从流体的流动形态、压力分布和温度分布等方面与直折流圆杆单元流道进行了对比。

Valve running thrust which represents 90% of the travel of the valve stem can be determined by adding stem load and stem packing friction.

阀门运行推力只是阀门阀杆行程力的90%，因此测算阀门推力时，要加上阀杆负载和阀杆填料摩擦力。

Stem and stem nut rotation combined length of not less than 1.4 times the diameter of the valve stem.

***阀杆与阀杆螺母的旋合长度不得小于阀杆直径的1.4倍。

For rising stem valve, check if the length of stem extension conforms to the length of stem cap.

如果是明杆阀门，应检查阀杆伸出量与阀杆护套的长度是否相符。

Classified according to location of threaded stem can be divided into Ming and dark rod valve valve two kinds of stroke.

按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。

The effect of joint deformation to truss displacement: 4 kinds of steel tube truss compute models are established making use of shell elements, truss elements, beam elements and combination of beam elements and truss elements.

采用板壳单元、桁架单元、梁单元以及弦杆为梁单元和腹杆为桁架单元的混合模型等四种计算模型分别建立了一个钢管桁架的有限元模型，计算并整理了各模型下桁架腹杆的轴力及各节点的位移。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷