查询词典 a column of water

OBJECTIVE:To establish the RP-HPLC method for determination of methyl hydroxybenzoate and ethyl hydroxybenzoate in oral liquid preparations METHODS:The Nova-Park C18 column(3 9mm×150mm,5μm)was used The mobile phase consisted of acetonitrile-water(25∶75)at a flow rate of 1ml/min,the detection wavelength was set at 254nm and the sensitivity was set at 0 01 AUFS RESULTS:The linear ranges of methyl hydroxybenzoate and ethyl hydroxybenzoate were 0 4 412～13 2 360μg/ml(r=0 9 999) and 0 6 672～20 0 160μg/m...

目的 ：建立内服液体制剂中羟苯甲酯和羟苯乙酯的反相高效液相色谱测定方法。方法：色谱柱：Nova -ParkC18 柱(3 9mm×150mm ，5μm)；流动相：乙腈-水(25∶75)；流速：1ml/min ；检测波长：254nm ；灵敏度：0 01AUFS。结果：羟苯甲酯浓度在0 4412～13 2360μg/ml范围内线性关系良好(r=0 9999)；羟苯乙酯浓度在0 6672～20 0160μg/ml范围内线性关系良好(r=0 9998)。结论：该方法简便、快速、准确，可用于医院制剂中防腐剂的检测。

By adding a foam indicator at the top of your fly, you can get your fly higher in the water column.

加上泡沫指标居于首位的代名词，你可以飞得更高的水柱。

Methods HPLC method was used, chromatography condition included the instrument was HP-1100 with a C18 Column and the mobile phase was methyl aldehyde and water（65:35）, at flow rate of 1.0ml/min,peaks were detected at 254nm.

高效液相色谱法。色谱条件：用十八烷基硅烷键合硅胶为填充剂，以甲醇-水（65：35）为流动相。

Biodegradation is a dynamic process, where the diffusion of hydrocarbon to oil water contact, the diffusion of metabolites away from the reaction site to the oil column. Late charging and mixing occurred in the reservoir also control on the degree of biodegradation.

生物降解是一个动态过程，烃类不断向油水界面扩散，降解过程中新形成的代谢物从油水界面向油柱扩散，后期充注及油藏内的混合作用也是控制生物降解作用程度的重要因素。

Depending on the geometry of gas-cap and oil column, the physical property and geometric shape of reservoir, and the mobility of edge and bottom water, the multiple oil-driving mechanisms exist in gas-cap reservoirs where there are gas-cap and oil/gas interface, and the recovery factor changes a lot because the oil/gas interface moves during exploitation of gas-cap reservoirs and it is very difficult to adjust and control the oil/gas interface.

气顶油气田因气顶及油气界面的存在，同时因气顶和油环的大小、储层物性、几何形态不同和边底水活跃程度不同，致使气顶油气藏在开采过程中具有多种驱油机理，采收率变化较大，这关键是气顶油气藏在开发过程中存在油气界面的移动问题，而调整和控制油气界面是相当困难。

Nested ANOVA test showed the variance of GCPP mainly occurred among sites rather than within periphyton. Diatoms increased with the GCPP. There is a significant positive relation between the dissolved inorganic nitrogen in the water column and GCPP of periphyton.

GCPP的时空变化与底栖微藻在附生藻类生物量中所占比例和水体中的无机氮浓度有非常显著的正相关性，初步推测大鹏湾的GCPP可能是受到水体中氮的限制而有GCPP之时空变化。

A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper.

气相色谱技术是测试该类物质的实用技术，从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法，并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。

A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper. Contents

气相色谱技术是测试该类物质的实用技术，从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法，并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。

The Model 17 pneumatic vacuum regulator features control sensitivity of 1/2 water column and a balanced supply valve to deliver consistent and reliable accuracy.

示范17气动真空调节器控制灵敏度的1 / 2水柱和均衡供应阀门，提供一致的和可靠的精度。

The Model 1600A precision vacuum regulator features control sensitivity of 1 water column and a balanced supply valve for high precision.

示范1600A精密真空调节器控制1敏感性水柱和高精度供求平衡的阀门。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。