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- head space gass 液上气体
- Residual methanol in oxytetracycline hydrochloride was determined by head space GC. 采用顶空气相色谱法测定盐酸土霉素中的残留甲醇,平均回收率为99。
- Residual methanol in oxytetracycline hydrochloride was determined by head space GC. The average recovery was 99.8%. 采用顶空气相色谱法测定盐酸土霉素中的残留甲醇,平均回收率为99。8%25。
- The controlling case is a transfer that fills the receiving tank so that little head space remains to absorb the pressure surge. 控制实例是通过一个中间罐，用来满足储罐内狭小的顶部空间来吸收激增的压力。
- Depending on the preexisting pressure and free head space in the receiving tank, the additional gas volume may be sufficient to overpressure the tank. 根据先前的压力和接收罐的顶部空间，增加的气体体积足以超出储罐。
- The controlling case is a transfer that fills the receiving tank so that little head space remains to absorb the pressure surge . （改译）控制方案是：在接受罐内安装一个转换器，以便留有少量顶部空间来吸收压力波动？
- A method for the determination of 1, 4-dioxane content in alcohol ether sulphates utilizing headspace gas chromatography is discribed.The factor of head space discussed. 本文采用顶空气相色谱法，测定了脂肪醇聚氧乙烯醚硫酸盐中的1，4-二烷含量，研究了顶空条件。
- This ensures that the residual air is expelled from the bottle's head space, thus creating additional protection against oxidation of the sensitive unsaturated fatty acids and vitamins. 灌装机里装有在关闭灌装阀之前喷射氮气的装置,以排出瓶头空间内的剩余气体,保护不饱和脂肪酸和维生素不受氧化。
- Methods Volatile halogenated hydrocarbons in tap water were determined by head space gas chromatography and other organic pollutants were determined by gas chromatography/mass spectrometry (GC/MS). 方法用顶空气相色谱法测定自来水中挥发性卤代烃，用气相色谱／质谱联用(GC/MS)法测定其他有机污染物。
- She nestled her head on his shoulder. 她将头依偎在他的肩上。
- head space solid phase microextraction (HS-SPME) 顶空固相微萃取法
- The deer lowered its head to drink from the pond. 鹿低下头去喝池塘里的水。
- He gave the little boy a clout on the head. 他在那小男孩的头部打了一下。
- I saw the small girl topple over and hit her head. 我看见那小女孩栽了一跤，碰着了头。
- head space solid-phase microextraction (HS-SPME) 顶空固相微萃取
- I was dazed by the blow on my head. 我的头挨了一击而觉得晕眩。
- She leaned her head back and whispered the news. 她向后仰着头，小声说出了这个消息。
- The horse kicked its fallen rider about the head. 那匹马乱踢从它背上掉下来的骑手的头部。
- A price of $1000 was set on the jewel thief's head. 悬赏1000美元抓住这个珠宝窃贼。
- As I was waiting for a bus a brick fell on my head. 当我在等公共汽车时，一块砖头落到了我的头上。
