This article described the determination of hydrogen in steel, copper, niobium, tantalum and titanium with ceramic crucible by high frequency induction-thermal conductivity method.

介绍了采用陶瓷坩埚用高频加热-热导法测定钢铁、铜、铌、钽、钛中的氢。

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Relative accuracy of regional gravimetric geoid determination is estimated by an frequency domain analysis, which is determined by regional terrestrial gravity measurements and geopotential model.

以频域解析方法，研究由地面重力数据、全球位模型确定区域重力大地水准面的相对精度估计。

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That includes the determination of persons, frequency, sphere, obtaining of evaluation proof, defining of laws and regulations and other requirements and the general process.

包括评价人员的确定、评价频次、评价范围、评价证据索取、法律法规和其他要求的界定，以及合规性评价的一般过程。

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