螺旋管

Seeping water ; iron hydroxide ; microtubular and spiral goethite ; biomineralization

渗漏水；氢氧化铁；显微管状和螺旋状针铁矿；生物矿化

Surgical anatomy of the facial nerve in Chinese mastoids.

面神经管病变的多层螺旋CT评价。

Objective To study the value of multislice helical CT multiplanar reformation to the display of facial nerve canal and the diagnosing of facial paralysis.

目的 探讨多排螺旋CT对面神经管显示能力及其在周围性面神经麻痹诊断中的应用价值。

Results Ten cases with fractures of the facial nerve canal, fracture involving the tympanic segment in 8 cases and the labyrinthine segment in 2 cases.

本研究的目的在于探讨64层螺旋CT及图像后处理技术对继发性面神经管病变的临床价值。

Purpose:Toeveluate the role of ultra high resolving double helix CT its MPR on scaning of facial nerve canal.

目的：观察超高分辨双螺旋CT扫描及其多方位重建的应用对面神经管的显示效果。

The comparable experimental investigation on the fouling characteristics of normal tube and twisted tube s in oil cooler was carried out.

对螺旋扁管与普通直管在油冷却器中的污垢特性进行了对比实验研究。

Effect of different tubes on the heat transfer and flow resistance performance of oil cooler with coronal fin tube s supported by helical baffles was studied in this paper.

通过实验研究了不同结构参数的螺旋折流板冠形翅片管油冷器，获得了油冷器的传热与阻力性能曲线。

But astronomers think that sunspots are magnetic flux tubes, because nobody knows how to produce these large circular electric currents of long solenoids.

但是，天文学家认为太阳黑子是磁流量管，因为没有人知道怎样产生长螺旋线圈中的大环电流。

The 2×390MW HRSG in Xiamen Eastern Power Plant for combustion engine works adopts the HRSG manufactured by Hangzhou Boiler Group Co., Ltd., which is characterized by three-pressure, reheats, without after－combustion, horizontal type and natural circulation. Since the full set of HRSG designing technology from the US NOOTER/ERIKSEN has been introduced, it matches with PG9341FA type gas turbine, adopting single-row frame construction, full suspension type, and in-line arrangement in the heating surface. The heat conduction components use gear screw finned tube, module type supply and positive pressure operation.

厦门东部燃气电厂2×390MW燃机工程的余热锅炉采用由杭州锅炉厂生产的三压、再热、无补燃、卧式、自然循环燃机余热锅炉，引进美国NOOTER/ERIKSEN公司全套燃气轮机余热锅炉设计技术，它与PG9341FA型燃气轮机相匹配，采用单排框架结构，全悬吊形式，受热面顺列布置，传热元件采用开齿螺旋鳍片管，模块式供货，锅炉为正压运行。

Introduced a new type of helix screw thread pipe heat exchanger, all stainless steel and advanced heat transfer technology in the application of raw material medicine has greatly improved the recovery of solvents to enhance production efficiency, effectively enhanced the competitiveness of enterprises .

介绍一种新型的螺旋螺纹管换热器，全不锈钢材质及先进的换热技术在原料药行业的应用，大大的提高了溶媒回收率，提高了生产效率，有效地增强了企业的竞争力。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。