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Introducing method of measuring the points on the pressure vessel, establishing and transforming coordinate systems, estimating accuracy of manufacture with design standard.

介绍压力容器上实体元素的测量，测量坐标系的建立与转换，以设计基准评定制造精度。

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As the nitrogen partial pressure increases, the variation of color coordinate is caused by decrease of free electrons number of the films and decrease of plasma frequency.

发现颜色坐标的变化是由于随氮分压增加，自由电子浓度降低引起等离子体频率降低造成的。

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Al-Khatib was chosen to serve as president of the Coalition, which was formed in November under international pressure to serve as the opposition's official liaison with other countries and coordinate anti-Assad forces inside and outside of Syria.

NPR: Head Of Western-Backed Syria Rebel Coalition Quits