柱形鉆 的英文怎麼說
中文拼音 [zhùxíngzhēn]
柱形鉆
英文
cylinder bur- 鉆 : 鉆Ⅰ名詞1. (打眼用的工具) drill; auger 2. (指鉆石) diamond; jewel Ⅱ動詞(用尖物在另一物體上轉動) drill; bore
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On the basis of analyzing the working circumstance and prosperity of downhole drilling string of the surface dynamic rotating drilling vertical well, the force prosperity and failure forms of downhole drilling string are focused on. and further research has been done on the vibration damage of downhole drilling string as well as the construction and work prosperity of vibrating - proof hydraulic shocker absorber
本文在對地面動力旋轉鉆井直井井下鉆柱的工作環境和特性加以分析的基礎上,著重對鉆柱在井下的受力特性以及損壞形式進行了分析,並對鉆柱在井下的振動危害以及用於防止振動的水力加壓減震器的結構、工作特性等一些規律進行了深入的探索和研究。It can lead to not only quick wear and early failure of drill pipe but also the decrease of collapse resistance and burst resistance of casing string, which could cause casing collapse, casing deformation and casing leak, even well bore abandonment
其直接後果是:鉆柱快速磨損,導致過早失效;套管磨損會降低套管柱的抗擠強度和抗內壓強度,造成套管柱擠毀、變形及泄漏,嚴重時造成全井報廢。One can discover other spiritual themes and imagery in andersens works as well. for example, the following passage from the story the bell 1845 suggests that the author experienced some degree of enlightenment : the whole of nature was a large holy church, in which the trees and hovering clouds formed the pillars, the flowers and grass, the woven velvet carpet, and heaven itself was the great cupola ; up there the flame color vanished as soon as the sun disappeared, but millions of stars were lighted ; diamond lamps were shining, and above them sounded the invisible holy bell ; happy spirits surrounded them, singing hallelujahs and rejoicing
我們在安徒生的作品中還可以發現一些靈性題材和意象,例如,以下節錄自故事鐘聲1845年發表的一段文字,透露了作者某種程度的開悟體驗:整個大自然就是一座神聖的大教堂,以樹木和浮雲為樑柱,以群花和綠草為絲絨地毯,而穹蒼就是它遼闊的屋頂,在那裡太陽一隱身,五彩光輝便隨之消逝,繼而亮起繁星點點,鉆石般的燈火閃閃發光,無形的神聖之鐘從上方傳來陣陣鐘聲,快樂的精靈圍繞著它們,唱著充滿喜悅的頌歌。The present results indicate that the diamond element always yields the highest heat transfer, followed by cube and waterdrop pin - fin. however, the pressure drop for the diamond pin is higher compared to the cube and waterdrop pin - fin. arrays with geometric parameters x / d = 2. 7 elements generally cause the greater heat transfer and pressure loss than those with x / d = 3. 3 and x / d = 4
研究結果表明:鉆石形擾流柱排換熱最強,方形次之,液滴形最弱,相應地鉆石形擾流柱排壓力損失也最大,方形次之,液滴形最弱;小間距( x / d = 2 . 7 )在換熱較強的同時壓力損失也高於其他兩種間距。Chapter three discusses the vibration forms of the surface dynamic rotating drilling downhole drilling string, analyzes the damage of low frequency ancf fongif ucfi ' na / vibration to downhole drilling string, and set up a set of math models of the longitudinal and torsional vibration
第三章分析探討了地面動力旋轉鉆井井下鉆柱的的振動形式,並提出分析了低頻縱振現象對井下鉆柱的損害,以及建立了縱向、扭轉振動的數學模型。During construction, special building methods were used to limit environmental damage, such as the piles being bored into the seabed rather than pile driven, to avoid mud sediment settling on the corals and killing them. most of the superstructure was prefabricated off - site, brought in by barge and then placed in position by crane to minimise the pollution, rubbish and noise
例如裝設支撐中心的樁柱時採用鉆挖形式,取代普通的打樁方式,務求減少翻起海床的沙泥,避免珊瑚窒息及死亡大部份上層建築組件是在建築地點以外的地方預先製作,並由駁船運到海下,再以吊車裝嵌,從而把施工帶來的污染垃圾及噪音減至最少。Must be familiar with measuring equipment such as micrometers, verniers, plug gauges, dial bores and various dial indicators
熟悉測量設備裝置,諸如:千分尺、游標尺、柱形測孔規、刻度鉆孔及多樣化的千分表。It cuts a clean cylinder of rock, from which can be seen the strata the drill has been cutting through
這種鉆頭能切割一段光滑的圓柱形巖石,從中能看出所鉆透的地層。Chapter four investigates some typical examples of the damage of drilling string in daqing oil field recent years. and on the basis of the analysis of the prosperity and form of the damage of drilling string, the main factors of the damage of downhole drilling string and the preventive measures have been presented
第四章調查了大慶近幾年鉆柱損壞的典型實例,並在對鉆柱損壞的特徵、形式等給予了分析的基礎上,提出了井下鉆柱損壞的主要因素及預防的關鍵。A cylindrical mass drilled vertically into the earth and removed from it to determine composition or presence of oil or gas
鉆心圓柱形物質,用於垂直地鉆入地下然後取出以測定石油或天然氣的組成或存在分享友人