管的

Finally: The training of nurses, parents in the church and a series of targeted care, reducing the complication of the permanent needle of deep venipuncture and improve the effectiveness .

结果：通过对护士的培训、对家长的宣教及一系列有针对性的护理，从而降低了深静脉置管的并发症，提高了置管的效果。

It shows that it is possible to increase the start oscillation length by tailoring magnetic field's amplitude and its period without changing the synchronous condition of the fundamental wave; in the meantime, when there are two or more azimuthally asymmetric space harmonics in the high power broad-band helix TWTtraveling wave tu...

与此同时，对起振长度、初始非同步速度参量随皮尔斯增益参量、空间电荷参量、损耗参量等的变化，以及在超宽带行波管中当存在两个或多个角向非对称空间谐波时，起振长度、初始非同步速度参量随周期永久聚焦磁场的变化进行了研究。优化设计聚焦磁场、电子注和螺旋线慢波系统的参量可以对螺旋线行波管的稳定性分析提供必要的依据。

Facing boiler tubes life prediction in practice,the method about boiler tube life prediction with measuring thickness of oxidation layer in inter tube wall was introduced and advanced technology on boiler bube appearance valuation and life prediction both at home and abroad was recommended.

3针对工程实际中受热面管的的寿命预测问题，介绍了通过内壁氧化皮厚度的测量进行受热面管寿命预测的方法，推荐了国内外先进的炉受热面状态评估与寿命预测技术。

The flow field of RH -KTB vacuum degasser in Magang is analyzed with three-dimensional numerical model established by CFX software platform.

利用CFX数值计算软件建立的数值耦合模型对马钢RH-KTB的流场进行了分析，得出了包括钢包、真空室、上升管、下降管的RH全系统的流场状态及其在精炼过程中的变化规律。

Any of several vascular, spore-bearing, aquatic or marsh plants of the genus Isoetes having short rhizomes and quill-like leaves.

水韭一种水韭属的、有维管的、含孢子的水生或沼生的植物，长有短根茎和羽管状的叶子

Vacuum rectifiers were made for very high voltages, such as the high voltage power supply for the 电视接收器中的阴极射线管, and the kenotron used for power supply in X射线 equipment.

真空整流器所做的如在电视接收器中的阴极射线管，和 X射线设备中电源用的 kenotron 高压电源的高电压。

Regular coiled carbon tubes are prepared by pyrolytic decomposition of acetylene on titanium plates at 750℃.

规则螺旋碳管的形成与钛片的预处理有关，在盐酸处理过的钛片表面上所生长的碳管几乎都是规则螺旋形状的。

As the heart of TWT,the structure stability of grided electron gun directly affect pulse output performance of TWT,and the structural reliability under vibration stress are especial-ly important for today's manufacturers.

栅控电子枪作为行波管的&心脏&，其结构的稳定性直接影响着管的脉冲输出性能，特别是在振动应力下的结构可靠性更是当今生产单位关注的重点。

The lowest rating boiler efficiency, the smallest heating area and the disposition of blast blower and inducing fan in energy conservation design standard for new heating residential buildings are analyzed and the relative suggestions are advanced.

本文认为为达到按户计量的良好效果，供暖系统应在设计时考虑到室内温度的可调性，因此应改变传统的没有跨越管的单管顺流式系统，提出了适应既有和新建住宅建筑按户计量的系统形式。

Moreover, it was found that the co-assembled carbon nanotubes could enhance electron transfer efficiency between electrode surface and viologens.

该结果揭示共存的碳纳米管能够大大提高紫精修饰电极的稳定性及电子在电极和紫精活性基团间的转移效率，并有助于深入了解含碳纳米管的薄膜修饰电极的电极反应过程。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。