曲柄

Decreasing the horizontal displacement of the seat will also increase riding comfort, while discomfort will increase when the horizontal displacement becomes too close to the crank axle.

2随著座位水平位移的减少，整体舒适程度亦呈现逐渐提升的趋势，然而过於靠近曲柄轴心的水平位置，其不舒适的主观感受明显的提高。

Chain Ring – The chain ring is the rings with teeth that help to secure the crank to the chain.

链环-环的链环，是与牙齿上，以确保曲柄链。

The crank turns a 39 tooth chain ring that drives a small 24 tooth chain ring on a mid-drive.

曲柄满39齿链环，驱动一个小24齿链环上中旬的驱动器。

This monotype propulsion by a central dented wheel getting force by a crank over a short chain and a speed gearbox.

作动的方式是以曲柄带动链条与齿轮进而传动完全悬挂於车体上的单一轮圈行进。

The Company is engaged Bicycle accessories include: a bike around the axis, the central axis and the saddle, chain wheel, crank, chain, fork, steel, pedal, flywheel, glue and other products, the product shall color a new, high quality, species-wide, in addition to many companies and domestic trade relations to establish cooperation, but also exported to Southeast Asia, South America, Africa and so on more than 20 countries and regions.

本公司所从事的自行车配件主要有：自行车前后轴、中轴及鞍座、链轮、曲柄、链条、前叉、钢珠、脚蹬、飞轮、胶水等系列产品，产品款色新、质量高、品种全，除和国内许多公司建立合作贸易关系外，并出口到东南亚、南美洲、非洲等20多个国家和地区。

Project content:According to the market demand,expand production of Four-star、and star series bike parts: front shaft、back shaft 、bike pump、front fork、steel ball、chain、chainwheel crank、cold patch glue、glue and other products for all kinds of bikes.

二、项目内容：根据市场需求，扩大生产&佛斯特&、&四星&、&恒星&牌系列自行车中轴、前后轴、飞轮、链条、曲柄、胶水、前叉、钢珠、打气筒等产品。

BOLT BK/CP ARTEK BRAKE CABLE 2P GRAY ARTEK SHIFTER LEVER NIL SHIFTER CABLE NIL PEDAL YH-31X 9/16", W/BALL , W/REFLECTOR PLASTIC BK CHINA SADDLE 7664 BLACK, CP RAIL AND CLAMP BK CHINA SEAT POST SP-200 250L, W/ SAFE LINE STEEL CP OM REFLECTOR REAR : RED J84 WHEEL: WHITE J91*2PCS CHINA CHAINWHEEL STEL ,1/2"*1/8"*32T*165MM, SQUARE HOLE, W/O CHAIN COVER STEEL CP CHINA CRANK 165L STEEL CP CHINA CHAIN COVER 660-2104 SUIT TO 32T STEEL PAINTED CHINA CHAIN C410 1/2"*1/8 STEEL BROWN KMC DERA.

螺栓银行/处长阿尔刹车线双路灰色阿尔移杠杆无移线无踏板的YH - 31X 9月16日&，瓦/球，瓦/反射银行中国塑料鞍7664黑色，处长铁路和夹具银行中国座椅后警司- 200 250L宽/安全线钢处长唵反射后置：红J84轮：白色J91 * 2PCS中国链限值， 1 / 2 &* 1 / 8 &* 32T * 165MM ，方孔， W / O型链罩钢处长中国曲柄165L钢处长中国链罩660-2104适合32T钢彩绘瓷器链C410 1 / 2 &* 1 / 8 钢棕KMC 防务。

With the industrial development, more and more kinds of crank press were designed, quality requirement is higher and higher, pressure is higher and higher, too.

随着工业的发展，曲柄压力机的品种和数量越来越多，质量越来越高，压力也越来越大。

The main research contents of the dissertation is as follows:(1) It studies the basic structure and working-theory of crank press driven byvarying speed.

结合课题的研制，本论文的主要研究内容如下：(1)研究变速驱动曲柄压力机系统的构成和工作原理，提出本论文的研究任务。

Based on the structure characteristics of the high-speed closed crank press, a two-degree-of-freedom dynamics mode has been established.

新闻摘要：根据高速闭式曲柄压力机结构特点，建立了两自由度动力学模型。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。