氦离子显微镜能够提供所有扫描射线法中最高空间分辨率的表面图像，以及极高的表面灵敏度。
Helium ion microscopy (HIM) offers the highest spatial resolution surface imaging of any scanning beam method, as well as extremely high surface sensitivity.
我们已对所拍摄的光谱的谱线都进行了辨认，所有结果表明原子发射光谱分析法是研究不同条件下氦等离子体状态的一种十分有效的手段。
Spectral lines have been identified. All results indicate that the spectroscopic analysis of atom emission is an effective way to study the state of He plasma under different conditions.
因此，氦孔隙率可以作为低孔隙率胶凝材料的结构参数，而用压汞法可能会导致错误的结论。
Therefore, helium porosity may be used as a structural parameter for low-porosity cementitious materials, but an incorrect conclusion may be drawn if mercury porosity is used.
大量数据证明，氦质谱检漏技术是满足火力发电厂“不停机”的真空系统检测的唯一方法。
A number of data show that the he mass spectrum detection technique is the only way to meet the requirements of "no-stop" of the thermal power plants.
采取有限元法对内冷屏的受热状况进行了计算分析，以验证内冷屏氦冷却管道设计方案的可靠性。
The heat load to the vacuum vessel thermal shield (VVTS) is analyzed by FLUENT finite element software in order to demonstrate that the design of cooling tubes is reliable.
为了直接获得工作状况下的漏率，在模拟工况条件下，采用氦质谱检漏仪正压检漏法可满足这样的要求。
In order to gain the real leak rate under simulating operating conditions, using the pressurized leak detection method of helium mass spectrometer leak detector, the accurate data are obtained.
摘要航天器的单点漏率测试往往采用氦质谱吸枪检漏法，因此，研究该方法的不确定度评定具有重要的工程实际意义。
Abstract: Helium mass spectrometer sniffing probe method is widely used in the process of the single point leak testing on the spacecraft.
用饱水法、溶剂法、氦流法和压汞法测定孔隙率。
The porosities are measured by water displacement, solvent displacement, helium inflow and mercury pressure.
用饱水法、溶剂法、氦流法和压汞法测定孔隙率。
The porosities are measured by water displacement, solvent displacement, helium inflow and mercury pressure.
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