查询词典 equalizing pipe

ABSTRACT Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem.

在深井、超深井、大斜度井、大位移井及水平井中，钻井时间延长、钻柱作用在套管上的侧向力增高，因此套管和钻柱的摩擦与磨损问题越来越突出。

Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem.

钻杆接头与套管摩擦磨损问题的理论与试验研究套管磨损

Bulk volume of the volume of block block block caliper micrometer-specific block, such as special types of straight shank drill bits Serratula straight shank long twist drill set, such as alloy straight shank twist drill reamer type of hand reamer straight shank straight shank machine reamer taper shank machine reamer and other types of coarse tooth cutter straight shank cutter tooth taper shank Rough Milling fine-tooth cutter straight shank end mill, such as hand-tap machine tap tap tap left teeth straight pipe tap, such as garden die die die left teeth straight pipe die die US-made of other alloys such as Alloy blade machine Segment saw blade, such as gear type inverted roller gear Gear planing cutter knife disc-shaped gear gear shaper cutters, such as factory outlets: cast iron flat, square boxes, granite slab, square and so on.

量块 散量块卡尺专用块千分尺专用块等钻头类直柄麻花钻直柄长麻花钻镶合金直柄麻花钻等铰刀类直柄手铰刀直柄机用铰刀锥柄机用铰刀等铣刀类粗齿直柄立铣刀粗齿锥柄立铣刀细齿直柄立铣刀等丝锥手用丝锥机用丝锥左牙丝锥直管丝锥等板牙园板牙左牙板牙直管板牙美制板牙等其他合金刀头合金刀片机用锯条等齿轮倒类齿轮滚刀齿轮刨刀齿轮铣刀盘形插齿刀等厂家直销：铸铁平板、方箱、花岗石平板、直角尺等。

In view of the improper matching of the strength-toughness for domestic petroleum drill pipe sub,the influence of the chemical compositions and metallurgical quality of 37CrMoE steel used for drill pipe sub on its mechanical properties,as well as the effect of the metallurgical quality on the hardenability,were analyzed.

针对国产石油钻杆接头存在强韧性配合不良的问题，试验研究了钻杆接头用37CrMoE钢的化学成分和冶金质量对其力学性能的影响，以及冶金质量对淬透性的影响。

HVAC piping design with valve selection 1, chiller plant, cooling water between inlet valve design; 2, before the butterfly pumps, filters, pumps after the check valve, butterfly valve; 3, sets, water separator pressure differential between the bypass valve; 4, set, divider into the returning pipe valve 5, the level of dry pipe valve; 6, valve air handling units, filters, electric two-pass or three-way valve 7, fan coil valve (or plus electric two-way valve) Note: The valve is typically used when the diameter is less than 150mm used Handle Butterfly Valve (D71X, D41X); diameter greater than 150mm used worm drive butterfly (D371X, D341X).

暖通空调管道用阀门的选型设计 1、冷冻水机组、冷却水进出口设计蝶阀； 2、水泵前蝶阀、过滤器，闸门水泵后止回阀、蝶阀； 3、集、分水器之间压差旁通阀； 4、集、分水器进、回水管蝶阀 5、水平干管蝶阀； 6、空气处理机组闸阀、过滤器、电动二通或三通阀 7、风机盘管闸阀注：一般采用蝶阀时，口径小于150mm时采用手柄式蝶阀（D71X、D41X）；口径大于150mm时采用蜗轮传动式蝶阀（D371X、D341X）。

Objective:Observes the babies and infants use nasal cannulae or changed two-sided hole pipe attracts the oxygen effect,to evaluate the nasal cannulae and the changed two-sided hole pipe attracts the oxygen to the babies and infants oxygen treatment effect is whether same.

目的：观察婴幼儿双孔吸氧管吸氧和改良双侧孔导管吸氧效果，评价双孔吸氧管吸氧和改良双侧孔导管吸氧法对婴幼儿氧疗效果是否相同。

The method of preparation is: the laminate is the catalyst carrier, the active ingredient of the catalyst carrier between the layers forms the catalyser, creates carbon nanometer pipe array between the layers by the precess of caemical vapor deposition, gets the carbon nanometer pipe array / laminate compounds.

其制备方法是以层状材料为催化剂载体，在其片层之间负载催化剂活性组分形成催化剂，通过化学气相沉积过程，在片层之间生长碳纳米管阵列，获得碳纳米管阵列/层状材料复合物。

Drum matrix material usually steel pipe, the reasons for the low price of steel pipe in chipboard stout.

滚筒基体的材料一般为钢管，原因是钢管价格低且坚固牢实。

The drill pipe s in some oil fields were diapired badly and continually and the diapiric happened to the intermediate belt's disappearance of drill pipe s.

钻杆刺漏大都发生在钻杆加厚过渡带消失处，优化选择钻杆加厚过渡带几何尺寸是重要的措施。

To achieve this, the or each steam generator pipe (22, 50, 60) has a respective downpipe section (34, 52, 62, 64), which is approximately vertical and through which the flow medium can flow downwards and a respective riser pipe section (36, 54, 66, 68) connected downstream of the downpipe on the flow medium side, which is approximately vertical and through which the flow medium can flow upwards.

为达到此目的，按本发明这一根或每根蒸汽发生器管(22、50、60)分别包括一个近似垂直布置可被流动介质沿向下的方向流过的下降管段(34、52、62、64)和一个沿流动介质流向连接在该下降管段下游的、近似垂直布置并可被流动介质沿向上的方向流过的上升管段(36、54、66、68)。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。