氦

Also calculated are dynamic heat transfer characteristics in the fuel rod under different pressure and it is found that we can use the temperature raising speed at x=14.5 cm to calculate helium pressure in the fuel rod.

通过用RODTRAN程序计算各种不同压力情况下的燃料棒动态传热特性，发现利用x=14.5cm处的包壳表面升温速率可以推算燃料棒内的氦气压力，氦气压力的测量精度可小于5％，也就是说可以区分1.9MPa和2.0MPa的压力差别，此时的最大温差可达0.5℃，同时也发现压紧弹簧段的温度响应比铀芯块段要快。

Vapor bubble oscillation and liquid column oscillation resonated together in the case of lower heat fluxes and deeper immersion depth of the heater. The bath temperature had a vital effect on the dominant frequency.

在较小热流密度和平板加热器处于浸入深度较大的时候，气泡的振动和恒温器中的液氦的振动形成共振；与此同时，氦浴温度对系统的特征频率有重要的影响。

It is emphatically pointed out that the pressure of liquid helium is the important parameter affecting heat transfer in superfluid.

本文强调指出：在一定的氦浴温度下压力是影响超流氦传热性能的主要因素。

The consumption of liquid helium is 1.1 L/h on average in 16 h, the peak of magnetic field strength of superconducting magnet is...

系统液氦灌注达到平衡后，液氦的平均蒸发量为1.1L/h，基本满足了用户的要求。

Ionized helium at least, the density minimum, it can quickly disperse from the metal bath of metal vapor produced by an increase, so to use helium as shielding gas, the plasma will be to maximize the suppression, thus increasing the penetration depth, improve welding speed.

氦气电离最少，密度最小，它能很快地驱散从金属熔池产生的上升的金属蒸气，所以用氦作保护气体，等离子体将被最大程度地抑制，从而增加熔深，提高焊接速度。

Through analysis on the present technologies,this study discovered that lowtemperature condensation is a relatively matured method with high cost and highlyconsumed energy;the other methods like adsorption,absorption and membrane osmose process are differently characterized by many features but have not been applied in industrial use for many reasons.

通过对目前提氦技术的分析介绍，低温冷凝法较为成熟，但能耗、成本较高；吸附法、吸收法和膜渗透法等其他提氦技术各具特点，但目前限于适用条件尚不能规模化工业应用。

By comparing the composition of rare gas elements in the lunar regolith and in the solar wind, the authors analyze the physical, chemical and isotopic effect...

研究了月壤中氦- 3的含量与月壤颗粒大小、矿物组成、元素成分和结构特征的关系，并估算了氦- 3的资源量；探讨了月球表面的反射率；综合分析了月球区域性磁场的形成机制。

In the Ti film and the TiZr alloy film annealed at 800 ℃, there are a lot of regular hexahedron or octahedron bubbles, which are the same as the projections of equilibrium shape of their matrix crystal. With annealing temperature of 720 ℃, the bubbles in TiZr alloy annealed for 40 min are more round than those annealed for 130 min.

在800 ℃热处理后的Ti和TiZr合金中均观察到规则的六边形和八边形氦泡，对应基体材料单晶平衡外形多面体的投影。720 ℃热处理40 min后，TiZr合金膜中的氦泡比同样温度热处理130 min后的接近球形。

The conclusion made in the paper provides a technical support for the design of instrument of in-rod helium pressure scatheless measurement.

为了防止氦气泄漏造成的包壳内压力降低，威胁到反应堆的安全，就有必要对燃料棒进行进堆前氦气压力无损检测。

3He is one stable isotope of helium, which is expensive because of its sparsity.

摘要氦-3是氦的稳定性同位素之一，十分稀缺昂贵。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。