Methods:The samples were injected into HP-5 capillary colnmn by head- space sampler and analysed with FID detector with standard addition method.

方法：用 HP-5毛细管气相色谱柱，顶空进样，FID 检测器，以标准溶液加入法进行计算。

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The projective grid, whose sampler takes the view rule of human eyes into account, is designed to use the grid in projective-space to take the place of the traditional grid in world-space.

投影网格的目的是用存在于投影空间的网格代替传统的存在于世界空间的规则矩形网格或梯形网格，使网格采样过程符合人眼视线规律的自然属性。

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The full-automatic sampler has small volume and light weight and can be used in a narrow space and applied to sample powdery materials containing water.

它是一种体积小、重量轻、能够在狭小的空间使用、对含水分的粉料取样同样能够应用的全自动取样机。

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