分馏的

Coal tar pitch is a coal tar initial fractionation, the boiling point greater than 360 ℃ residues; wood tar wood tar pitch is the residue after distillation material.

煤焦油沥青是煤焦油初步分馏后，沸点大于360℃的残留物；木焦油沥青是木焦油蒸馏后的残留物。

This subject is mainly studying simulating the overall flowsheet of Ester Distillation process in the production of Aliphatic Alcohol and its application.

本课题研究的主要内容是运用流程模拟技术进行脂肪醇装置中酯分馏过程的全流程模拟及应用。

The azeotropism -fractionation process for recovering formic acid from acid wastewater in cyclohexanol/ cyclohexanone production was studied,and the feasible kind and dosage of entrainment reagent for was determined.

采用共沸—分馏组合法从环己醇和环己酮生产装置产生的酸性废水中回收甲酸，确定了适宜挟带剂的种类及加入量。

The contraceptive efficacy of Carica papaya seeds after short-term evaluation has been well established. We have examined the safety and mechanism of contraception in rats after long-term treatment with the methanol subfraction of C.

番木瓜种子的短期避孕效果已经确认，本文旨在研究大鼠长期服用番木瓜种子甲醇分馏物避孕的安全性和避孕机制。

As the solution to be purified is heated, its vapors rise to the fractionating column.

当要被提纯的液体受热时，它的蒸汽上升到分馏柱。

The intense fractionation of REE and the obvious depletion of HREE suggest that these volcanic rocks were derived from garnet lherzolite of the mantle in the continental lithosphere.

稀土元素的强烈分馏以及重稀土元素显著贫化，意味著这些火山岩源自於大陆岩石圈地慢的石榴石二辉橄榄岩。

The main content of the disquisition is studying the Simulation of fractionation process and application in the whole process of the nitrotoluene producting, using the technology of process simulation.

本课题研究的主要内容是运用流程模拟技术进行硝基甲苯生产中硝基甲苯分馏过程的全流程模拟及应用。

Sulfur isotope of franeolite indicate that sulfur isotope value of phos phate concretion is larger than that of evaporite sulfate, there is little doubt that sulfur isotope fraetionation happens during phosphorite diagenesis, heav ier sulfur is laid in sediments because of formation of H〓S.

磷结核的稳定S同位素测试表明：其值大于同时代海水蒸发盐的值，这是由于在成岩作用过程中发生了S同位素分馏，生成H〓S，从而使沉积物中富集〓S。

The results show that reaction of petroleum waxes to light is photooxidative reaction of free-radical which is caused by nitrogen-containing, oxygen-containing and aromatic compounds.

发现渤海原油的石油酸主要是由环烷酸所组成，直链脂肪酸含量较少，支链脂肪酸随着馏分沸点的升高含量逐渐降低。

The possibility is studied for producing bean extractive solvent oil boiling range of 60～90℃with the aromatic raffinate of splitting light-end products.

研究了轻烃裂解的芳烃油余油生产大豆抽提溶剂油（60～90℃馏分）的可能性。

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。