BP公司的马孔多油井近三个月来持续向海水中泄漏原油和天然气,直到七月工程人员加上了控油罩才止住了漏油。
BP's Macondo well spewed oil and natural gas for nearly three months, before crews installed a cap that halted the leak last month.
电梯门在她的面前缓缓关上,孔玉芬分明看到顾长卿朝着她得意地一笑,气的她差点又冲进去。
The elevator door slowly closes in her in front, bore jade the aroma is clear see attend to long Qing toward she satisfiedly on smiling, morale of she almost again dash into.
气膜孔流量系数随动量比的增大而增加,在小动量比下,影响尤为明显;
The film hole flow coefficient is increased with momentum ratio, especially when momentum ratio is small.
运用气举反循环钻进,在满足一定条件下适当增加双壁钻具长度即可得到较大钻进孔深。
Apply air reverse circulation drilling, appropriate increase length of twofold wall drill tools under certain conditions, may be drilling much deeper.
报道了用热线风速仪和流动可视化技术对带有横向扩展型孔的燃气轮机气膜冷却叶片紊流流场进行的研究。
Hot wire measurements and flow visualization are presented for studying the turbulent flow field over a flat gas turbine film cooling blade with lateral expanded holes.
本文介绍了镗削活塞锥形销孔的气液压刀具补偿系统的工作原理,并介绍了气液压刀具补偿系统的应用实例。
The working principle and applied example of the air hydraulic pressure cutter bucking-out system was presented in boring a tapered pinhole in the piston.
天然气计量现在仍以差压式流量计中的孔板流量计为主。
The metering of natural gas still presently depends on orifice flowmeter, one of differential pressure flowmeters.
对叶片弦中区内部有、无冲击射流的气膜出流冷却方式中,冷气侧气膜孔局部换热特性进行了实验研究。
Experimental investigation of the turbine blade local heat transfer characteristics at the inner side of the mid-chord region near film holes was conducted, with and without impingement cooling.
着重介绍了气膜冷却、涡轮叶片内流冷却技术和气膜孔流量系数的研究进展。
Particular emphasis is given to the development of film cooling, internal cooling technologies and film hole discharge coefficients.
高压水射流径向水平孔钻进技术是水平孔施工技术之一,它是在垂直瓦斯抽放或煤层气勘探钻孔布置机械或水力扩孔装置,对准选定的煤层部位进行扩孔。
As one of radial horizontal drilling techniques, high pressure water jet drilling technology is capable of using mechanical or water jet apparatus to make a cavity at the selected coal seam.
实验中对涡轮叶片采用四排气膜孔的冷却方案,气膜孔为圆柱形。
The surface of a gas turbine blade was cooled by four rows of cylindrical holes in the experiment.
常规测井资料识别天然气主要依据三孔隙度测井曲线。
Identifying natural gas with conventional log data mainly is based on three porosity log curves.
以带气膜冷却孔的航空燃气涡轮发动机涡轮叶片为研究背景,引入了等效概念对密布小孔结构进行了详细的应力-应变分析。
An equivalent no-perforated plate concept is introduced in the stress-strain analysis for densely-distributed film cooling holes on turbine blades of gas turbine engines.
川西须家河组2段气藏属于低渗低孔致密深层气藏,地层压力和破裂压力高。
Gas reservoir in Xujiahe Section 2 in west Sichuan are low porosity, low permeability, deep, high formation pore and fracture pressure, etc.
同时,预测了有利于煤层气形成和勘探的有利地段,9- 73孔、21 - 11孔附近地区为最有利煤层气勘探区。
In addition, favorable locations for coal-bed gas formation and exploration are predicted, and areas nearby 21-11 and 9-73 holes are most favorable for exploration.
镀锌方孔网最常用做窗纱,机械外围的安全防护,也广泛用在气液体的过滤和粮食筛选。
Galvanized square wire mesh is mostly used as window screening safely guards on machinery enclosures. it is also widely used in filtering liquid and gas, sieving grain.
该气液分布器空间占位更低,气体通道开孔率更大,气流阻力小,压降低,操作弹性范围大。
This distributor use small space. has more distribute hole, little gas resistance, low pressure drop , wide operation flexibility.
介绍最近研制的一台双向进气带第二小孔阀型二级脉管制冷机实验情况。
In this paper an experimental investigation on a recently developed two stage double inlet pulse tube refrigerator with a minor orifice is introduced.
测试和实焊表明,带有斜孔导气装置的TIG气冷焊枪,保护性能稳定可靠,结构简单,具有推广价值。
The results show that the stable and reliable shielding gas can be obtained with a simple gas cooling TIG gun when it possesses oblique holes on the nozzle device.
结果表明,空气弹簧气囊外形及材料特性、附加气室容积和节流孔直径是影响空气弹簧性能的主要因素。
The results show that shape of the air cell, properties of the material, volume of the appended gas chamber and diameter of the throttle hole are main factors affecting the dynamics of air springs.
结果表明:三种进气角度的小孔在孔进口区的换热增强幅度都较大,并且在进口区不同位置增幅差别都很大;
The results demonstrate that the convective heat transfer intensifies greatly and varies in the region inside all the hole entrances.
计算模拟了两排26个气膜孔,每个孔截面的网格数达到近200个,计算域包括了供气腔。
The computational domain were extended to the coolant supply plenum, and two rows of 26 film cooling holes were simulated, with about 200 cells across each orifice cross-section.
气膜孔出流流量和出流位置对通道内流场的影响很小。
The mass flow rate and position of film outflow are less effective on the flow field in the channel.
实验中发现气膜孔雷诺数和肋角对流量系数有较大的影响。
It is found in the experiments that film hole Reynolds number and Rib Angle have great influence on film hole discharge coefficients.
结合川西地区致密砂岩气藏低孔渗的地质特点,对复合技术进行了研究。
This article studies this composite technology by taking the geologic features of low porosity and low permeability of tight gas sands in West Sichuan.
在软基低堰掺气窄缝戽流消能研究基础上,提出一种新型消能工——孔板混合流消能工。
On the basis of studies on aeration tract bucket flow energy dissipation in lower weir on soft foundation, a new type of energy dissipater was put forward.
在软基低堰掺气窄缝戽流消能研究基础上,提出一种新型消能工——孔板混合流消能工。
On the basis of studies on aeration tract bucket flow energy dissipation in lower weir on soft foundation, a new type of energy dissipater was put forward.
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