To detect water leaking of underground tube, the traditional method relies on the sound-electricity transformation. Therefore, detection sensitivity, depth and distance suffer great limitation.
传统的检测地下管道漏水的方法是以声—电转换为基础，这使得灵敏度、深度和距离都受到很大限制。
Tube too much, will only let the distance more and more far.
管的太多，只会让距离越来越远。
This system was used to measure the flame propagation velocities along the tube, and furthermore to determine the DDT distance.
通过该系统测量爆震管中火焰传播速度的轴向分布，确定了爆燃到爆震的转捩距离。
The separation distance between the nozzle and the resonance tube and the feed pressure of the driving gas were the main considerations.
实验中主要考虑喷嘴与谐振管间的分离距离以及供气压力的变化。
What is the appropriate distance from the teeth to the tip of an endotracheal tube? From the nares to the tip for a nasal intubation.
牙齿到气管导管头端的核实距离为多少？鼻插管时鼻孔到导管尖端的距离有多少？
Emphasis is laid on the effect of tube distance and fin thickness on fin efficiency.
重点分析了圆管与扁管管间距、肋片厚度对肋效率的影响。
For its particularity of structure, the heat now limit of separate long distance heat tube has its own features.
分离式长尺热管由于结构的特殊性，其热流极限也有独自的特点。
The simulated results show that the effect of tube walls and inner-walls distance on adsorption ability is apparent.
模拟结果表明：多壁碳纳米管的管壁数和管壁间距对吸附性能的影响较明显；
The effects of heat transfer could be improved by increasing the range of refrigerant flow or shortening the distance of the inner tube and outer tube of the heat exchangers.
而提高冷媒的流量或缩短换热器的内管与外管套之间的距离可以大大改进冷冻浓缩的传热效果。
By adding molten iron scrap to enhance the chute and adjust the distance between the pipe mold, pipe mold reform and other measures will be laminated Dabao tube reduced the percentage of 0.68%.
通过在铁水中加入废钢，加强对溜槽与管模之间的距离调整，管模改造等措施将夹层打爆管所占比率降为0.68%。
The silane crosslinking polypropylene tube not only can be repaired by penetrating a long distance to ensure the success of repairing, but also has good high temperature resistant property.
这 种硅烷交联聚丙烯管，不仅可进行长距离穿插修复、确保修复成功，而且耐高温性能好。
Two routes can not be worn in the same tube, wire and heating, hot water, gas pipe between the parallel distance should not be less than 300mm, the cross should not be less than 100mm.
两路线不能穿同一管内，电线和暖气、热水、煤气管之间的平行距离不应小于300mm，交叉距离不应小于100mm。
This paper, taking sound velocity limit of long distance separate heat tube as main project, reaches two important conclusions through ample theoretical analysis and experimental study.
本文以长尺分离式热管的声速极限为主要研究内容，通过充分的理论分析和实验研究，得出了两个重要结论。
Conclusion: Considering the absorbed dose of the patients and avoiding the image distortion, it is suggested that the selection of focus-film distance should be matched with the tube and grid.
结论：考虑病人的吸收剂量和避免影像失真，摄影焦-片距的选择应与滤线栅的焦距相匹配。
However the fin height, fin Angle and distance of finned tube have the large influence to the finned tube heat, all of them exist the optimal geometrical dimensions.
然而翅片高度、翅片夹角和管排间距则对翅片管的散热性能影响很大，分别存在最优的几何尺寸。
The vibration damper (14) is formed by a vertical outer tube (18) and a vertical inner tube (20), the inner tube (20) being at a distance from the outer tube (18).
振动阻尼器(14)由竖直外管(18)以及与外管(18)隔开的竖直内管(20)形成。
From a distance, it looked like a skinny tube, but as we got closer, we could see it flesh out before our eyes.
从远处看，它看起来就像一个瘦管，但是当我们走近时，我们可以看到在我们的眼睛之前得有血有肉。
The detecting circuit of power line touching of the suspension system of DC long-distance reserve power supply of PHS Cell Station was designed by the characteristic of gaseous discharge tube.
利用气体放电管的特性，实现了小灵通基站后备直流远供电源悬浮系统动力线碰触的检测；电路结构简单，实用性强。
The observation lens is the single-tube visual lens, eyeglass is made of a concave lens, and the inner part of a lens tube is provided with a visual distance increasing device.
所述的观测镜是单筒目视镜，目镜用凹透镜制成，镜筒内部设有视距增长装置。
A new way modifying the classic way of determining the center-to-center distance in a shell-and-tube heat exchanger is put forward in this paper.
本文提出对列管换热器列管间距经典计算公式的修正计算式。
A new way modifying the classic way of determining the center-to-center distance in a shell-and-tube heat exchanger is put forward in this paper.
本文提出对列管换热器列管间距经典计算公式的修正计算式。
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