您要查找的是不是：
- Cutting Liner Concrete on Vault of Tunnel by Shallow Bore Hole Presplitting Blasting 淺孔預裂爆破切割隧道拱頂襯砌混凝土
- Stamp-tax, press the flower, engraving and bore hole the series ceiling. 印花、壓花、浮雕、穿孔系列天花板。
- Illustrated shallow bore high pressure to note water method and note water result in detail. 詳細地陳述了淺孔高壓注水方法及注水效果。
- Bears hole up for the winter to go by. 熊蟄伏在穴中過(guò)冬。
- Bears hole up for the winter to go by . 熊蟄伏在穴中過(guò)冬。
- The function of an auger is to bore holes. 麻花鉆的功用是鉆孔。
- Above the inversion point the temperature in the bore hole decreases as the depth decreases. 在反向點(diǎn)以上，井孔內的溫度將隨著(zhù)深度的變淺而下降。
- The contact between drillstring and bore hole wall in the process of horizontal drilling is of large area and geometrically nonlinear. 長(cháng)中半徑水平井鉆柱與井壁的接觸問(wèn)題是大面積接觸的幾何非線(xiàn)性問(wèn)題。
- HRS88-1, borehole is another Quaternary borehole drilled after Shun-5 bore hole in the north of the Beijing Plain. HR88－1孔是北京平原區北部繼順5孔之后，又一重要的第四系鉆孔。
- This tech has feature of measuring full data, saving operation time and losing cost which avoids bore hole disturbance and killing fluid influence. 該技術(shù)測取資料齊全,節約作業(yè)時(shí)間,降低作業(yè)成本,避免了井筒干擾和壓井液的影響。
- Pumps can bring water from mains water storage tanks or bore holes. 水泵可以從主蓄水池或鉆孔中抽水。
- A series of new formulae for bore hole projection analysis and their applicability for various bore structures and models are suggested. 本文針對現行鉆孔投影解析法存在的問(wèn)題,提出鉆孔投影計算公式與投影計算孔段的結構有關(guān),即孔口位置(是否在勘探線(xiàn)上)、巖層走向及勘探線(xiàn)三者間的相互位置不同,其計算公式也不同。 據此,提出了196種孔段平面結構和18種模式的鉆孔走向投影水平增量計算系列新公式。
- As a typical example, the contact-impact problem between the drillstring and the bore hole wall in oil field has been calculated and analysed. 文中針對石油工程中鉆柱這類(lèi)典型的細長(cháng)桿與圓形井壁的接觸碰撞問(wèn)題進(jìn)行了求解。
- The functions of trenchless rig's driving mechanism affect its drilling efficiency, bore hole quality and other technologyical performances directly. 非開(kāi)挖鉆機給進(jìn)機構的性能好壞直接影響鉆機鉆進(jìn)效率、鉆孔質(zhì)量及鉆機各項技術(shù)性能的發(fā)揮。
- But by many times of field applications,some shortages for bore hole selective tester is tested which needs a good completion and dev... 但經(jīng)過(guò)多次現場(chǎng)使用,證實(shí)全通徑選擇測試閥還存在某些不足,需要進(jìn)一步完善和改進(jìn)。
- Used to bore hole in fabric, leather, paper and other materials.Switzerland technilogy and import steel reamer is surable,and bore.... 用于織物、皮革、紙張及其它材料的樣品打孔。瑞士技術(shù)設計，鉆頭風(fēng)格獨特，樣品打孔操作輕松簡(jiǎn)便。
- Influenced by effect of bore hole afterflow,a long closes time is needed for pressure build up test in low permeability reservoir. 受井筒續流效應的影響,低滲透油藏的壓力恢復試井需要較長(cháng)的關(guān)井時(shí)間。
- It is only shallow people who judge by appearances. 只有淺薄的人才會(huì )以貌取人。
- The results show that the contact -impact problem between the slender rod and the wall of a round hole, such as the drillstring and the bore hole wall, can be solved better. 結果表明,動(dòng)力間隙元能較好地解決細長(cháng)桿(如鉆柱)與圓孔孔壁(如井壁)的接觸碰撞問(wèn)題。
- Meanwhile,the downhole motor and MWD are not affected and wellbore trajectory can be controlled because of the continuous fluid phase flow throughout the bore hole. 同時(shí)由于從井口到井底始終存在著(zhù)連續的液相流,常規井下動(dòng)力鉆具和隨鉆儀器的性能不受影響,可以進(jìn)行正常的井眼軌跡控制。
