The petroleum migration fractionation in the south part through unconformity and permeable carriers laterally is more obvious than that in the north part through the fault systems vertically 南部油气通过不整合面和渗透性岩层输导系统发生的侧向运移明显比北部通过断裂输导系统的垂向运移分馏效应要强。
Based on the distribution of the unknown compounds " x " ( between ts and tm ) in oils and rocks , in combination with the theory of gas - washing evaporative fractionation , the formation of the light oils in kela 2 - 3 dry gas reservoir is explained 根据萜烷中未知“ x ”化合物在原油中分布的普遍性和在烃源岩中的分布特征，结合气洗蒸发分馏作用的原理，解释了克拉2 - 3号干气藏中少量轻质油的成因。
The condensates that derived from coals in yangtake structure are mixed by the light compositions from triassic lacustrine mudstones . the distribution of nitrogen compositions proved that differences of compositional fractionation existed in different carrier systems from source to trap in kuche basin 利用含氮化合物的运移分馏效应证实了，在从源岩到圈闭的聚集过程中，库车盆地不同的输导系统产生的原油分馏效应的差异。
When the design pressure of the reactor / regenerator is less than or equal to the design pressure of the main fractionator , or there is some absolute mechanical limit to the regenerator pressure ( plus the static head difference between the regenerator and reactor ) that is less than the main fractionator design pressure , the units do not need large relief valves on the main fractionator 当所设计反应器或交流热换器的压力小于或等于主分馏器，又或者有些机械上无可避免的限制（还有就是两静电头的不同）小于交流热换器的压力，其时整个部件就不需要大的调剂电子管了。
We can get the unqualified light hydrocarbon back to fractional tower to resume fractionating which greatly insures the quality , we combine the science and technology tackle project from da qing natural gas company - the research on microcomputer detection and control system in light hydrocarbon blending crude oil , analyze the machining technology of production device in gas disposing station , study the physical and chemical character of impurity blending in the light hydrocarbon and establish the detection scheme finally 并让不合格的产品重新回到分馏塔中进行重新分馏加工，以确保产品质量。本文结合大庆天然气公司的科技攻关项目? ?轻烃含原油微机测控系统研制，对一分公司油气处理站的轻烃生产设备进行了生产工艺流程分析，同时也对轻烃和混入的原油杂质进行物理和化学性质的分析，确立了监控设计方案。
The comparison of stomatal parameters in leaf cuticles between two fossil angiosperms from the pliocene in west yunnan and their nearest living equivalent species indicates a little higher atmospheric co2 level at that time than the present , while carbon isotopic composition of fossil cuticles demonstrates much higher carbon isotopic discrimination and slight lower water use efficiency , showing a warmer and wetter climate than today 摘要对滇西腾冲新近纪两种被子植物叶片及其现存对应种的气孔参数和碳同位素组成的综合分析表明：当时的大气co2浓度略高于现在水平；化石种的碳同位素分馏值高于现存对应种，但水分利用效率低于现存对应种；这证明当时的气候条件比当前更为温暖湿润。
The text lays particular emphasis on the evaluation of the groundwater , involves the groundwater type , groundwater chemical characteristics , the amount of the water resource and the natural groundwater amount by using the method of numerical model after the calculation of the parameters , such as transmissivity , the coefficient of the flexible water release , with the data of the pumping test in the research zone 采用visualmodflow地下水软件进行数学模型的求解。在地下水流数学模型识别和验证后,设计了两种方案进行了地下水的预报。应用同位素分馏原理和质量守恒定律,确定不同含水层中地下水的成因及形成条件,建立本研究区地下水系统的水循环模式;采用模糊综合评价方法对研究区内的水质进行了评价。
The light oils originated from high mature rocks . in the process from source to trap with gas washing and evaporative fractionation , the oils got rich in aromatic compounds and poor in other compounds , which indicates that gas washing has great effects on the oil compositions 认为这些轻质油来自高成熟的烃源岩，在其运移过程中受到气洗，发生蒸发分馏作用，使得其轻组分中芳烃化合物苯和甲苯相对富集，而其它组分则大量损失，表明了气洗对油的改造是十分强烈的。
Among the felsic rocks , samples from the zhangjiakou formation ( fm . ) are characterized by moderately to strongly eu anomalies , and variable negative anomaly of sr , ti and p , whereas samples from the donglingtai fm . exhibit enriched lree and flat hree patterns with nb / ta fractionation and high zr / sm ratios 在中酸性火山岩系列中，张家口组火山岩表现出中等-强烈的eu负异常和不同程度的sr 、 ti 、 p负异常；东岭台组火山岩表现出富集lree和平坦的hree的稀土配分模式， nb ta分馏，高zr sm比值。
