The expression of the relation between pressure, volume and temperature is as follows.
压力、体积与温度的关系可表述如下。
The relation equation of pressure drop in oil tank vers burning time and the air volume is established.
导出了油箱容积、气箱容积、充气间隔的压力降和燃烧时间的关系。
Methods Relation hemorrhage volume, cerebrospinal fluid pressure and ingredient change in cerebrospinal fluid with headache were analyzed in 82 old patients with SAH and 84 non-aged as comparison.
方法分析82例老年sah患者出血量、颅压、脑脊液改变与头痛程度的关系，并与84例非老年性SAH患者作对照。
Methods Relation hemorrhage volume, cerebrospinal fluid pressure and ingredient change in cerebrospinal fluid with headache were analyzed in 82 old patients with SAH and 84 non-aged as comparison.
方法分析82例老年sah患者出血量、颅压、脑脊液改变与头痛程度的关系，并与84例非老年性SAH患者作对照。
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