For sulphur removal, a method of ferric oxide is used. It not only enhances utilization ratio of energy, but also reduces pollution.

采用氧化铁法对秸秆气进行脱硫，不仅提高能源的利用率，而且减少了污染。

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The main points are to represent the utilization ratio of energy as a series of functions of the grain size of feed material and the fineness of discharge al well as the nozzle form.

研究的主要内容是给料粒度与粉碎产物细度和能量效率的关系，以及喷嘴形状与能量效率的关系。

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Its advantages are discarding thick and heavy cover glass, high utilization ratio of energy, high brightness of refraction image, easy to making plane frame of hologram for display and easy to carry.

该法优点是不需要厚重玻璃衬板，光能利用率高，重现像亮，易于把全息图制成平面一体化构架，便于携带。

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