管

Cases were cuted by Nd:YAG laser called laser group, while the insertion group of 28 cases and the control group of 30 ones were each treated by different methods that eustachian tube insertion under nasal endoscope and eustachian tube blowing, and the effect of the three was evaluated.

其中26例施行Nd：YAG激光鼓膜造孔术治疗，为激光组；28例施行鼻内镜下咽鼓管置管术治疗，为置管组；30例施行传统的咽鼓管吹张术治疗，为对照组。

Our product is a titanium , sparse noble metal material such as nickel, Mu , tantalum , zirconium processes; The tube , stick , silk , belt , board , foil , net , cake are encircled by reaching alloy products; Reaction equipment (500 L reaction boilers , titanium steel compound reaction boilers , titanium outside plate manage the warmup reaction boiler , the nickel steel compound reaction boiler); Heat exchanger (the titanium enumerates a pipe heat exchanger , titanium plate-type heat exchanger , the nickel heat exchanger , titanium helix plate-type heat exchanger); Compound board (titanium steel compound board , titanium copper compound board , titanium aluminium compound board finished product); The accessory and the heater titanium net are blue , the titanium flange , titanium nut titanium filter , titanium pump , titanium plate manage , the positive electrode , titanium centrifugal machine , titanium heater , various mistake are labeled with equipment and the accessory.

我们的产品是钛、镍、钼、钽、锆等稀贵金属材料加工；管、棒、丝、带、板、箔、网、饼环及合金制品；反应设备（500L反应釜、钛钢复合反应釜、钛外盘管加热反应釜、镍钢复合反应锅）；换热器（钛列管式换热器、钛板式换热器、镍换热器、钛螺旋板式换热器）；复合板（钛钢复合板、钛铜复合板、钛铝复合板成品）；配件及加热器（钛网蓝、钛法兰、钛螺母钛过滤器、钛泵、钛盘管、阳极、钛离心机、钛加热器、各种非标设备及配件。

Constructs the pipeline: The PVC plastic tube, the PE tube, the ABStube, the PPC tube, the PP-R tube, the aluminum model themultiple-unit tube, the conduit and so on each kind of materialquality tubing and the necessary bridge piece.

建筑管道：PVC塑料管、PE管、ABS管、PPC管、PP-R管、铝塑复合管、电线导管等各种材质管材及配套连接件。

The Correlation between enzyme activities and physical properties of spruce forests soil The acid phosphatase was conducive to the increase of natural capacity, capillary capacity, saturated water capacity, non-capillary capacity, total porosity, non-capillary porosity, and the decrease of bulk density; the catalase and proteinase were conducive to the increase of capillary porosity and water porosity, respectively, these results suggested that catalyze function of soil enzyme directly acted the formation of soil physical structures.

土壤酶活性与土壤物理性质的相关性酸性磷酸酶活性的增强，有助于土壤自然含水量、毛管水含量、饱和水含量、非毛管水含量、总孔隙、非毛管孔隙的增加及容重的减小；过氧化氢酶和蛋白酶活性的增强分别有助于毛管孔隙和水占孔隙的增加。

Surface tension effects on condensate retention angle and condensation heat transfer coefficient of carbon dioxide were studied.

综述了水平低翅片管外凝结传热的基本模型，阐述了二氧化碳制冷剂的物性特点，讨论了表面张力与凝液滞留角及二氧化碳管外凝结换热系数的关系，分析了翅片密度、环形翅片管尺寸对翅片效率、滞留角、凝结换热系数以及传热增强比的影响，优化了外翅片管的齿高与齿距，并求得相应的强化传热增强比。

The fire coal falls on the chain fire grates from coal: bucket and hen goes into the furnace tank for burning, and the flame passes through the upper back arch of the combustion chamber and back snloke chamber and then through the second fire pipe Io the

燃料煤自煤斗落在链条炉排面上，进入炉膛燃烧后，火焰经过后拱上部燃烧室和后棚管烟室后进入二回程烟管到前烟箱，再由前烟箱折回第三回程管束后，通过热管空气预热器、多管除尘器，然后由引风机抽引经过烟囱排出。

The company was founded in 1994 and now it has developed a complete set of production lines of seamless steel pipe , including 8 cold-drawing pipe machines ( with 4 of them being LB-65t ,4 LB-320t , 2 LB-500t ) and a production line of welding pipe.

公司始建于1994年，十三年的持续发展，形成了完整的无缝钢管配套生产线： LB-65t 冷拔管机、 LB-320t 冷拔管机各4台， LB-500t 冷拔管机2台，不锈钢焊接管生产线一套。

Cold-drawn tube production lines still in production, but prices have been as cold-drawing tube of hot-rolled tube and a corresponding rise in prices, the market cold-drawing tube Liaocheng basically the price of real estate in 4400 yuan / ton.

冷拔管生产线仍在生产，但是冷拔管出厂价格已经随着热轧管坯的价格上涨而水涨船高，目前市场上冷拔管聊城本地产基本上售价是在4400元/吨。

Seamless tube plant in the local prices continued to fall, hot-rolled pipes below 4300 yuan / ton, cold-drawn tubes 4400 yuan / ton.

本地管厂的无缝管出厂价格继续下调，热轧管低于4300元/吨，冷拔管4400元/吨。

When working on the Ex area, the first that contractor shall considered is the connection between couduits and connection between conduit with junction box, pull box. The connection between those part shall be kept a contiunous electricity. Secondly, when the cable connected to the pull box, ex-proof type connector shall be installed.

14.3.2.1 由于是在防爆区，因此电缆管的安装首先要考虑的因素之一是电缆管之间及电缆管与接线箱、穿线盒、电缆桥架之间的连接应保持良好的电气连续性并进行接地，此外，电缆管在与接线箱连接时，必须安装防爆密封接头。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。