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reverse circulation造句

"reverse circulation"是什么意思   

例句與造句

  1. The larger reverse circulation bits used for drilling through pebbles
    卵礫石層大直徑反循環(huán)樁孔鉆進(jìn)用鉆頭
  2. Emulator analyse on rake angle of injector hole in reverse circulation bit
    反循環(huán)鉆頭引射孔傾角的仿真分析
  3. Discussion on application effect of reverse circulation technique with drilling pale
    鉆孔樁反循環(huán)工藝應(yīng)用效果初探
  4. Reverse circulation valve
    反循環(huán)閥
  5. Experimental study of the reduced reverse circulation in thermosyphon solar water heater
    防倒流循環(huán)家用太陽(yáng)能熱水器的實(shí)驗(yàn)研究
  6. It's difficult to find reverse circulation in a sentence. 用reverse circulation造句挺難的
  7. The fault tree analysis of interruption of fluid in pump suction reverse circulation drilling
    泵吸反循環(huán)鉆進(jìn)中循環(huán)液中斷的故障樹(shù)分析
  8. Cae on reverse circulation structure of buried pore hammer bit ofthrough model with gas - operated
    貫通式氣動(dòng)潛孔錘鉆頭反循環(huán)結(jié)構(gòu)的計(jì)算機(jī)輔助設(shè)計(jì)
  9. The practice amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller
    3工程鉆機(jī)動(dòng)力頭雙通道反循環(huán)主軸改裝實(shí)踐
  10. The practice amp; amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller
    3工程鉆機(jī)動(dòng)力頭雙通道反循環(huán)主軸改裝實(shí)踐
  11. This machine adopts two species of drillingtechnique of direct and reverse circulation , the efficiency enhances observably in the process of ovum , gravel and rock layer construction
    該機(jī)可采用正反循環(huán)兩種鉆進(jìn)工藝,在卵、礫、巖層施工中,效率顯著提高。
  12. Multi - medium reverse circulation composite drilling technique is a new geological drilling method effectively combined air reverse circulation continuous sample with hydraulic reverse circulation core drilling
    從數(shù)字技術(shù)的角度描述了未來(lái)的鉆探前景,它是基于自動(dòng)檢測(cè)系統(tǒng)、智能專家系統(tǒng)和自動(dòng)控制系統(tǒng)基礎(chǔ)之上的數(shù)字控制體系。
  13. The stroke reverse circulation drilling machine of czf2000 - 1800 type is produced by our company newly to adapt to the demand of percussion drill market due to the development of road and bridge industry , it is specializedly used for pore forming of pebble and gravel stratum and hard stratum
    1800型沖擊反循環(huán)鉆機(jī)是我公司最新研制生產(chǎn)的為適應(yīng)我國(guó)路橋事業(yè)發(fā)展對(duì)沖擊鉆機(jī)市場(chǎng)的需求,專門(mén)用于卵礫石地層、堅(jiān)硬地層中成孔的鉆機(jī)。
  14. Under the function of big pressure and dynamic load , the grains may be moved which may cause the soil body distortion . at present , the relatively ripe methods of drill in gravel layer are mostly double - wall drill pipe reverse circulation drilling , auger stem breast wall drilling and down - the - hole hammer follow down drilling
    論文根據(jù)jsl ? 30型礫石鉆機(jī)潛孔錘同心跟管鉆具結(jié)構(gòu),采用程序計(jì)算得到了鉆桿內(nèi)各深度處壓力分布、鉆頭壓力降、環(huán)形空間壓力分布及空氣流速分布。
  15. This drilling adopts crank connecting link and walking beam percussion mechanism , which make the drilling possess two percussive functions , normal drilling takes connecting link impact as main mode , when encountering special situation and the connecting link impact can not drill , it can transform into hoisting impact , the stroke length can be modulated , it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism , these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag , which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum , but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist , which not only ensures the balance state of drilling tool , but also reduces the mechanical design , and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising , and reduces the assistant operating time
    該鉆機(jī)采用曲柄連桿、游梁式?jīng)_擊機(jī)構(gòu),使鉆機(jī)具有兩種沖擊功能;正常鉆進(jìn)以連桿沖擊為主,遇到特殊情況,用連桿沖擊不能鉆進(jìn)時(shí),可轉(zhuǎn)為卷?yè)P(yáng)沖擊,沖程可調(diào),因連桿沖擊機(jī)構(gòu)連續(xù)工作,所以實(shí)現(xiàn)了自動(dòng)沖擊鉆進(jìn),可提高鉆進(jìn)效率,減輕勞動(dòng)強(qiáng)度;采用泵吸反循環(huán)的方式排渣,既能有效解決卵礫石地層、堅(jiān)硬地層等特殊地層鉆進(jìn)的困難,又很好地解決了沖擊鉆機(jī)效率低下的問(wèn)題;采用直齒圓柱齒輪差速機(jī)構(gòu)作為主卷?yè)P(yáng)的雙筒同步機(jī)構(gòu),既保證了鉆具處于平衡狀態(tài),又大大簡(jiǎn)化了該機(jī)構(gòu)設(shè)計(jì),降低了成本;該鉆機(jī)底盤(pán)行走移位采用步履式;鉆塔采用液壓起立,減少了輔助作業(yè)時(shí)間。

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