立管内部核心是空心的(管中管)，留给钻柱使用。
The riser's inner hollow core (a pipe within a pipe) is reserved for the drill string.
笔者在实地考察的基础上，从三方面详细地分析了“管中管”腐蚀环境对管道腐蚀及阴极保护效果的影响。
Based on the field examinations, the influence of corrosive environment upon the effectiveness of protective coatings and cathodic protection are discussed.
单个昆虫放置在装有75%到 95%的乙醇的塑料管或玻璃管中（容量为1.5-3.0ml 的装小蚂蚁，5-8ml 的装大一点的蚂蚁）。
Individual insects are placed in plastic or glass tubes (1.5-3.0 ml capacity for small ants, 5-8 ml for larger ants) containing 75% to 95% ethanol.
跟那些不知数码管为何物的朋友提个醒，数码管是十分精巧氖气显示管，在1969就被用于计算器中。
For those that don't know what nixie tubes are, they were used back in 1969 in calculators and are quaint neon display tubes.
新的钻石可能首先以微小的发光二极管，或者平板显示器和高清晰电视中的发光二极管出现。
The new diamonds are likely to show up first as tiny light-emitting diodes, or LEDs, in flat-screen displays and high-definition televisions.
导电管用于电线和电极中，用于晶体管或太阳能电池中的半导体管采用了活性材料。
Conducting tubes are used in wires and electrodes but semiconducting tubes are the active material for transistors or solar cells.
通过将单个晶体管中的一组电极与多个鳍片进行连接，能够使这种驱动电流增强的晶体管获得更高的性能。
By connecting one set of electrodes to multiple "fins" in a single transistor, the company can make transistors that operate with a greater drive current-a plus for high-performance operation.
把这种聚合物和碳纳米管在一种溶剂中混合，可以将半导体管和导体管分离开。
Mixing the polymer with commercially available carbon nanotubes in a solvent separates semiconducting tubes from conducting tubes.
这台电磁式机器一直使用到1959年，然后就被遗弃在灰尘中，因为到了那个时期，首先使用电子管、接着晶体管、然后集成电路芯片的真正电子计算机先后问世。
The electromagnetic machine remained in use until 1959, by which time it was left in the dust by true electronic computers using first vacuum tubes, then transistors, then chips.
图尔所在实验室发明的纳米管混合体中，既含半导电的纳米管，又有导电纳米管。
The mixture of nanotubes created in Tour’s lab includes both semiconducting nanotubes and conducting nanotubes.
在PI工作中，Michael向前倾身，处理一条长的PVC管，他向附近的一个狱警请示说需要去拿更多的PVC管。
Michael works on P.I., hunched over a long tube of PVC piping. He calls out to a nearby C.O. that he needs to grab more.
英特尔公司(Intel)称其在晶体管技术中取得了重大突破——应用三栅级晶体管技术的3D芯片将进入量产阶段。 该技术首次亮相于2002年。
Intel claimed a breakthrough in transistor technology by announcing that it was ready to use its 3D Tri-Gate chip, first unveiled in 2002, in high-volume manufacturing.
正是出于这个原因，在《财富》杂志（Fortune）评选出的首支商界高管“梦之队”（由最优秀的高管组成的全明星阵容）中，斯金纳入选首发名单。
That's why Fortune has named Skinner to the starting lineup of our first Executive Dream Team, an all-star roster of top-performing executives.
根据电压源的极性，互相并联的两个二极管(D)中的一个用来减小噪声，而另一个二极管则提供放电通路。
Depending on the polarity of the voltage source, one of the two diodes (d) in parallel is used to reduce noise while the other provides a discharge path.
对每个管件我们都编了号，并且将所有的管件存放在不同的托盘中。
We give each pipe a coded number, and we store all the pipe pieces in different pallets.
他跟我说，在他的工作中，他经常需要跟高管交流，很多高管都是外国人。
In his job, he often had to communicate with senior managers, many of whom were foreigners.
而且磨损也正是省煤器爆管在锅炉四管爆破事故中占的比例较高的原因之一。
Wear and it is also the economizer tube in boiler four tube blasting accident accounted for the proportion of one of the reasons for high.
在很多发动机内，恒温控制器装在进气岐管或排气岐管的空腔中。
In many engines, the thermostat is located in a well in the intake or exhaust manifold.
商业银行的绩效变量只能解释高管薪酬30%左右的变化，这说明当前上市银行高管薪酬的决定机制中还没有充分考虑银行的综合经营绩效。
The performance of the commercial Banks can explain about only 30% of the variation of the compensation, so it's not the most important factor that decide the level of senior executives' compensation.
结果观察组29例患者中，25例均自主置管成功，4例通过纤维胃镜直接将鼻肠管带至十二指肠或空肠，普通胃管按常规操作。
Results The observation group 29 cases, 25 cases are independent of success, 4 cases through fiber with nasal endoscopy directly to duodenal or jejunal bowel, normal gastric tube routine.
盘管的标准型式均为铜管串铝翅片结构，采用机械胀管。表冷段设计有倾斜式排水盘，保证彻底排尽水盘中的凝水。
All standard coils are mechanically expanded copper pipes plus aluminum fins. The surface cooling section is equipped with a pitched discharge coil to ensure complete discharge of condensed water.
结论在NSCLC化疗静脉通路中，PIC C置管并发症发生明显少于CVC置管通路和普通留置针，利于保护血管，但其远期的安全性有待研究。
Conclusion in NSCLC chemotherapy, there are fewer complications in PICC than those in CVC and common counterpart, which can protect vascular, but its long-term safety is deserved to explore.
简要叙述了电磁超声换能器(EMAT)的基本原理、主要特点及其在管加工厂管端探伤中应用的情况。
Introducing the theory of EMAT as well as its main characters and the applications in pipe end inspection at pipe Finishing Plant.
本文通过分析采暖系统中的空气的来源，提出空气在系统中的危害，针对单户计量系统中水平管坡度较小，提出水平支管中水流速应保持较大。
This paper analyzes air source in heating system, states that gas is harmful in the system, points out level pipe gradient being small in single measure system, and velocity of flow must keep great.
目的探讨根管治疗术中根管充填的护理方法，以提高根管治疗的效率和质量。
Objective to explore the nursing methods during canal obturation in order to improve efficiency and quality of root canal therapy.
采用拉链式塑料管作为渗灌管，在大棚中埋于地下不同深度，在不同工作水头下进行了基本渗流规律的试验研究。
Study on the basic seepage laws under different working heads, with zippered plastic pipes as percolation irrigation pipe embedded at different depths underground in the shelf.
采用拉链式塑料管作为渗灌管，在大棚中埋于地下不同深度，在不同工作水头下进行了基本渗流规律的试验研究。
Study on the basic seepage laws under different working heads, with zippered plastic pipes as percolation irrigation pipe embedded at different depths underground in the shelf.
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