Methods: Using heavy caliber capillary gas chromatography with headspace sampling.方法: 采用顶空进样技术,用大口径毛细管气相色谱法测定.Acid - volatile sulfide in river sediment sample was measured by reaction headspace.采用顶空色谱测定了河流底泥中的可酸挥发硫化物.Two...
A solid headspace capillary gas chromatography for the determination of residual organic solvents asarone was established.建立了固体顶空毛细管气相色谱法测定细辛脑中有机溶剂残留量.Methods: Using heavy caliber capillary gas chromatography with headsp...
To observe the cellular changes of the pia vessels after chronic cerebral hypoperfusion.目的观察慢性低脑灌注状态软脑膜血管组织细胞活性改变....superficial blood vessels in the forearm.前臂的表层血管Subfreezing temperatures obliterate these vessels and t...
The city has trebled the number of its prisoners to 21,000.该市的囚犯人数增长了两倍，达到21,000人。Their profits have trebled in the last two years.最近两年他们的利润增加了三倍.It's value has trebled.它的价值已增长到原来的三倍....
Interfering in-laws are the prime sources of the blues.喜欢指手画脚的姻亲最让人头疼。People may roll their eyes and talk about overprotective, interfering grandmothers.人们可能会翻着白眼谈论那些溺爱儿孙、样样都要插手的祖母。This congealed muck was interfering wit...
The separation of acetone, ethanol, benzene, chloroform, toluene was performed on a 10 % PEG - 20 M Chromosorb - W - AW - DMCS column.对样品中残留丙酮 、 乙醇 、 苯 、 氯仿 、 甲苯的分离选用10%PEG-20Mchromosorb -W-AW-DMCS 公谱柱.With the column ov...