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Determination on the bioactivity of 3 fractions （nexane, chloroform and water fraction）of the chloroform fractions from stem of Mirabilis jalapa L against 4th instar larvae of Pier/is rapae L.

取食第3天与第5天的拒食率分别为96.80%与99.67%；也测定了紫茉莉茎氯仿提取物各萃取物（正己烷、氟仿和水萃取物）对4龄菜粉蝶幼虫的生物活性。

The properties of light fractions (including naphtha, jet fuel and light hydrogenated lube base oil) from the 300 kt/a lube isodewaxing unit of SINOPEC Shanghai Gaoqiao Company were reviewed and a proposal for optimizing utilization of these fractions was presented, such as producing AR petroleum ether from naphtha; superior odorless kerosene and rolling oil of aluminum foil from jet fuel fraction; transformer oil, high quality white oil and jelly wax from light base oil fraction.

对中国石化上海高桥分公司300kt/a润滑油异构脱蜡装置生产的石脑油馏分、喷气燃料馏分及轻质加氢基础油性质进行试验分析，提出合理的利用方案，其中石脑油馏分可生产分析纯石油醚，喷气燃料馏分可生产特种煤油与铝箔轧制油，轻质加氢基础油可生产变压器油、高档白油以及果冻蜡。

The problem of slow TPH degradation found to be related to the polar fractions accumulation. Increase of fungi community diversity was found helpful in decomposition of the polar fractions. The symbiotic environment between bacteria and fungi was beneficial to the 2nd –stage TPH biodegradation.

至於各组降解迟滞的问题则与污染物三成份中极性物质的累积有关，在累积过程中真菌类多样性的增加，有助於极性物质的去除，最后细菌类与真菌类共生的环境能使污染物产生第二阶段的降解反应，因此污染物能持续降解。

When the aphids were feeding on Ww2730 seedlings, the time to 1st probing was delayed compared to those on Xiaoyan22 and Batis, searching was interrupted before 1st probing, and 1st probing was shorter than that on Xiaoyan22 and Batis significantly. Duration of pd Ⅱ-1 on Ww2730 and Xiaoyan22 was much longer than that on Batis. Duration of pd in C waveforms on Ww2730 was longer than that on Xiaoyan22 and Batis remarkedly. Times and duration of G waveform on Ww2730 were more and longer. Times of spot G waveform on Batis were more than on Ww2730 significantly, but the duration was shorter than those on Xiaoyan22 and Ww2730. Total time of E1 waveform, max longest duration of E1 fractions and mean duration time of E1 fractions following E2 wavefrom on Xiaoyan22 and Batis were all longer than on Ww2730 statistically. There were no differenences among mean durations of 1st E1 wavefrom on three varieties, but mean durations of other E1 waveforms on Ww2730 and Xiaoyan22 were shorter than those on Batis. The other waveform parameters, include times and durations of F and E2 were all not different on three wheat varieties.It is suggested that the resistance mechanism of wheat variety Ww2730 to S.

麦长管蚜在品种Ww2730上口针开始接触叶面时间显著晚于小偃22和Batis，第1次持续刺探前的刺探次数显著多于小偃22和Batis，开始刺入叶面后第1次刺探的持续时间极显著短于小偃22和Batis；在Ww2730和小偃22上的PdⅡ-1的平均时间显著长于Batis；Ww2730上C波阶段2个Pd波间的间隔平均时间显著大于另外2个品种；在Ww2730木质部取食的次数和时间显著大于其它2个品种；Batis上的点G波的次数极显著地高于Ww2730，而平均持续时间极显著短于小偃22和Ww2730；在Batis和小偃22上E1波的总时间，E1波的最大值、跟随E2波的E1波的平均时间均显著大于Ww2730；3个品种间第1次E1波持续的时间差异不显著，但Ww2730和小偃22上其它E1波持续的时间极显著少于Batis；3个品种上其它波形参数，包括F波的次数和总时间、E2波的次数和总时间没有差异。

Fit , the fractions in different temperature ranges were ingathered by rectifying wash oil azeotropic distillation were done with the different fractions and ethanediol respectively .

首先精馏洗油，切取不同温度段的馏分，然后分别与共沸剂乙二醇进行共沸精馏试验；在共沸精馏中，通过改变馏分与共沸剂的质量比和回流比，考察了不同条件对喹啉纯度的影响。

The results showed that the upper section of the profile contains more coarse fractions and loessic fractions, with the presence of gravels, showing vertical changes in grain size. All of these suggested that the upper section is loessic material deposited by water.

研究结果表明：凤凰山剖面上部含有砾石，粗粒组分含量较高，且垂向变化均较大，分选性较差，但同时颗粒组成仍以风成沉积的两个主要粒级为主，为经流水作用改造的次生黄土。

5The leachate recirculation promoted the speciation of Cu and Zn shift fromunsteady fractions (acid soluble fraction and reducible fraction) to steady fractions(oxidable fraction and residual fraction), and attenuated their migration.

不同时期不同深度填埋层内Cu和Zn形态的差异明显，填埋垃圾的好氧环境的暴露能促使Cu和Zn从稳定态向不稳定态迁移。

Especially, sulfide has significant positive correction and negativecorrection with unsteady fractions (acid soluble fraction and reducible fraction)andsteady fractions (oxidable fraction and residual fraction)of Cu and Zn in MSW,respectively. Simulation computation results from Visual MINTEQ showed that Cu~(2+)was mainly associated with humus and migrated from lose association (FA_1-Cu) totight association (FA_2-Cu), while Zn~(2+) was mainly presented with complexation withS~(2-) which was strengthened as the reducing environmental surrounding in landfillgradually.

Visual MINTEQ模拟计算结果表明，渗滤液中Cu大部分为腐殖质络合态，并逐渐由与松结合态富里酸络合态(FA_1-Cu)向稳结合态富里酸络合态(FA_2-Cu)转变；Zn则主要表现为与S~(2-)的络合，其络合程度随模拟填埋场内还原性环境形成而加剧，生物反应器填埋场的渗滤液长期回灌能促使Cu和Zn逐步形成络合沉淀而使其在填埋垃圾内的迁移行为减缓。

A method is provided for manufacturing cleaner fuels, in which NPC, naturally existing in small quantities within various petrolic hydrocarbon fractions, are removed from the petrolic hydrocarbon fractions ranging, in boiling point, from 110 to 560 DEG C and preferably from 200 to 400 DEG C, in advance of catalytic hydroprocessing.

提供了一种生产清洁燃料的方法。该方法是在催化加氢处理之前，从沸点在110―560℃，较好在200―400℃范围的石油原料馏分中除去以少量存在的天然极性化合物。

The total extract and the three fractions were used to test the activities. Result: Total extract, fractionsⅠandⅡ could not only significantly inhibit mice prostatic hyperplasia induced by testosterone propionate and activity of serum acid phosphatase, but also decrease wet weight of preputial glands, while fraction Ⅲ is inactive.

结果 ：白芥子总提取物、白芥子分段提取物Ⅰ和Ⅱ均能显著抑制由丙酸睾酮诱发的去势小鼠前列腺增生，明显降低小鼠包皮腺湿重和血清酸性磷酸酶活力，而提取物Ⅲ无活性。

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。