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- The frame of mast derrick that is designed for hydraulic wheel tractor hoist adopt welding of armor plate,its section is oblong armor plate,and its material is HG60. 為滿(mǎn)足液壓輪式通井機的使用要求而設計的桅桿式井架采用板焊結構,主體截面為長(cháng)方形的方形鋼,材料為HG60。
- The frame of mast derrick that is designed for hydraulic wheel tractor hoist adopt welding of armor plate,its section is oblong armor plate,and its material is HG60.Stability,static loads and fatigue life on a derrick are calculated in designing. 為滿(mǎn)足液壓輪式通井機的使用要求而設計的桅桿式井架采用板焊結構,主體截面為長(cháng)方形的方形鋼,材料為HG60。 對井架進(jìn)行了穩定性、靜強度和疲勞強度設計計算。
- From points of view of technology and economy summarizing the status quo of tractor hoist at home and associating its application status,the predominance of wheeled tractor hoist is analyzed. 從技術(shù)和經(jīng)濟角度綜述中國通井機設備的現狀,結合通井機的使用狀況,分析了輪式通井機的優(yōu)勢。
- Analysis on common failure of the AT tractor hoist's work gear-box AT型通井機作業(yè)變速箱常見(jiàn)故障分析
- Development of a new hydraulic wheeled tractor hoist 新型液壓輪式通井機的研制
- Hydraulic System Design of Wheeled Tractor Hoist with Self - propelled 自行輪式通井機液壓系統設計
- The tractor has make deep furrow in the loose sand. 曳引機在松軟的沙土上留下了深深的車(chē)轍。
- A set of tools goes with each tractor. 每一臺出售的拖拉機都附有工具一套。
- He drove the tractor to his farm. 他開(kāi)拖拉機去農場(chǎng)了。
- We need a hoist to lift the concrete blocks. 我們需要一臺起重機來(lái)吊起混凝土塊。
- There is a tractor in this farmyard. 在這個(gè)農家庭院里停著(zhù)一臺拖拉機。
- The tractor is powered by a diesel engine. 這臺曳引機是用柴油機發(fā)動(dòng)的。
- The tractor had been damaged by rough usage. 這輛拖拉機因使用不經(jīng)心而損壞了。
- The clanking tractor went along, shooting smoke out of its belly. 拖拉機鏗鏗地開(kāi)了過(guò)去，從車(chē)肚里噴出煙來(lái)。
- The tractor laboured up the hillside. 拖拉機艱難地向山坡上爬去。
- They managed to pull in the tractor inside the shed. 他們設法把牽引機拉進(jìn)棚里。
- A bar across the rear of a tractor for hitching machinery. 聯(lián)接桿拖拉機后部牽引機械的橫梁
- A man shall hoist sail while the wind is fair. 風(fēng)好須揚帆。
- A ring or collar of rope used to hoist spars or prevent fraying. 索環(huán)一環(huán)或一圈繩子，用來(lái)升起桅桿或防止磨損
- tractor hoist 通井機, 修井機
