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- The track is triangle shape.The sprocket is elevated.There are two idlers in front and at rear of the frame and seven track roller. 行走系统履带呈三角形布置，驱链轮高置，行走架前后两个引导轮，七个支重轮。
- Roller bearings with or without inner rings, and yoke type track rollers. 各类带内圈及不带内圈的滚针轴承及曲线滚轮类轴承.
- Track roller assy ,Carrier roller assy,Sprocket rim,Idler assy,Track chain ,Construction machinery spare parts pin ,busing,shaft,high-strength bolt &nut,etc. 行业类别：行业专用机械设备建筑机械机械及工业制品通用零部件有效期限：2020-12-30
- At present , the company main products are : construction machinery undercarriage ,top roller ,track roller ,sprocket ,idler ,steel track ,rubber track ,rubber track pads ,wheel hub etc . 目前公司主要产品有:工程机械专用底架、四轮一带，及橡胶履带，橡胶履带板，轮毂等产品。
- From stud and yoke type track rollers to needle rollers and cage assemblies, NTN`s needle roller bearing lines covers all the bases. 详细描述 ： NTN has a wide-ranging and hardy line of needle roller bearings that can withstand large loads and thrust options.
- Improvement of Load Tester for Track Roller 支重轮负载试验机的改进
- self-lubricating lower track roller 自动润滑式链轨支重轮
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- We specialized in manufacturing main kinds of undercarriage parts for excavator, bulldozer, such as track rollers, top rollers, idlers assy, sprockets,chain for Komatsu, Cat, Hitachi, Kato etc. 我们专门制造各种主起落架零件;挖掘机;推土机;等径辊;胶辊;闲散总成;链轮;链小松;卡特彼勒;日立;加藤等.
- We specialized in manufacturing main kinds of undercarriage parts for excavator, bulldozer, such as track rollers, top rollers, idlers assy, sprockets, chain for Komatsu, Cat, Hitachi, Kato etc. 我们专门制造各种主起落架零件;挖掘机;推土机;等径辊;胶辊;闲散总成;链轮;链小松;卡特彼勒;日立;加藤等.
- This rough track will soon be a metalled road. 这条坑坑洼洼的路不久就要铺上碎石了。
- I'm trying to track down my old Aunt Maud. 我正试图寻找到我那年迈的婶婶莫德。
- The ride on the roller coaster dizzied us. 乘坐云霄飞车使我们头晕。
- The cyclist went at full sail along the track. 自行车手沿着跑道全速前进。
- May I borrow your roller skates? 我可以借你的旱冰鞋吗？
- Bill has a feeling he is on a fast track. 比尔感觉到他正快速迈向成功。
- The new race track is nearly six miles in extent. 这条新跑道将近六英里长。
- Clattering along on roller skates. 踩着轮式溜冰鞋行进
- John bears the bell in all track events at school. 约翰在学校里的各个径赛项目中都赢得第一名。
- I'm on the track of a valuable painting. 我在追寻一幅珍贵的油画。
