分馏的

Spectral analysis of soil trace elements is based on fractional distillation of the element being detected in electric arc plasma.

本法根据被测元素在电弧等离子体中的分馏效应原理，选择合适的电极规格和内标缓冲剂，对土壤微量元素进行定量测定。

The main method of separation used in refineries is fractional distillation, although further processing is normally required to produce marketable petroleum products.

分离石油主要采用的方法就是分馏，然后通过深加工才能得到可以销售的石油产品。

A colorless, flammable liquid, C6H14, derived from the fractional distillation of petroleum and used as a solvent and as a working fluid in low-temperature ''.

已烷一种无色可燃液体，c6h14，从石油的分馏中提取，用作溶剂和低温度气压计中的工作流体

Hexane: A colorless, flammable liquid, C6H 14, derived from the fractional distillation of petroleum and used as a solvent and as a working fluid in low-temperature thermometers.

已烷：一种无色可燃液体，C6H 14，从石油的分馏中提取，用作溶剂和低温度气压计中的工作流体

The result indicated that the absolute fractionation factor of the interested elements changed with the above parameters.

结果表明，各元素的绝对分馏因子随着上述参数的改变而变化。

Fractionation effect of coalbed gas is a phenomenon that gas composition and isotope change during the process of migration.

煤层气的分馏效应是指运移过程中气体组份和同位素值发生变化的现象。

It reveals that the composition shift phenomena is contributed by fractionation related to four mechanisms.

研究发现，组分迁移现象的4种引发机理都与混合工质的分馏有关。

Fractionation mechanisms have an important significance in coalbed gas migration and accumulation.

分馏机理的探讨对煤层气的运移聚集具有重要指导意义。

But the biogenic sulfur isotopic fractionation process was complicated by many factors.

但生物成因的硫同位素分馏过程复杂，受诸多因素的限制。

The operation and control interaction analysis between main fractionator and stabilizer of FCCU was studied.

研究分析了催化裂化装置的主分馏塔与稳定塔之间操作控制的关联性。

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。