查询词典 petroleum

The paper suggests that the extraction of petroleum ether, polysaccharide and sodium copper chlorophyllin from banana leaves can be exploited as dishware abluent or abluent–assistants.

因此，从泡沫性能、表面张力、去污力三个方面，本研究认为香蕉叶石油醚抽出物、叶多糖和叶绿素铜钠盐可以开发作为餐具洗涤剂或洗涤助剂。

It,s allelchemicals were isolated through extraction, thin-layer chromatography, and column chromatograpathy. After the white clover was infused in ethanol and evaporation, the leavings was dissolved by water. The aqueous extract was extracted by petroleum,chloroform, ethyl acetate and n-Butanol successively, and the bioassay showed that the chloroform phase has obvious inhibitory effect, the inhibitory rate was 44.32%,88.08% on Abutilon theophrasti M., seedling length and root length, 82.08%,92.16% on Echinochloa crusgalli L., seedling length and root length, and the Amaranthus retroflexux L., germination rate is 0, the secondly was ethyl acetate phase.

运用萃取、薄层层析、柱层析等方法对白三叶草地上部分的化感物质进行初步分离，结果表明，白三叶草经乙醇浸提旋转蒸发后用蒸馏水溶解，依次用石油醚、氯仿、乙酸乙酯、正丁醇萃取，生物测定表明氯仿组分对杂草的抑制作用最强，对苘麻芽长和根长抑制率分别为44.32%、88.08%，对稗草芽长和根长的抑制率分别为82.08%、92.16%，反枝苋的发芽率为0；其次是乙酸乙酯相。

This article introduces a simple method, which is acetylation method, to determinate the hydroxy content in petroleum oxidation products.

文章介绍了一种测定石油氧化物中羟值的简便方法——乙酰化法。

Requests on resistance of corrosion destructibility of sealing interfaces that related to sealing up and cementing exercises in petroleum engineering are more and more of rigidity. It is urgently needs to resolve all sorts of problems that affect interface bonding quality. Conventional cement slurry design resist the destructive function worse, and can't like to satisfy the request to carry on latter production such as perforation, acidify, fracture etc.

常规油井水泥抵抗破坏的性能较差，不能很好满足水泥环抗冲击振动以及射孔、压裂等各种变形破坏的要求，这在一定程度上限制了小间隙、大位移、定向与水平井等特殊钻井工艺技术的发展，也制约了后期压裂、酸化等诸多开发工艺措施的实施。

Under 300 W medium mercury lamp, the quantum yields of petroleum hydrocarbons at 365 nm were determined by potassium ferri-oxalate actinometer. And their reaction kinetics constants were measured too.

并采用高光密度法，以K3Fe(C2O4)3做光露计，300W中压汞灯为光源，在365nm波长处测定石油烃类的反应速率常数和量子产率。

Sinopec also said that completion of the acquisition, Addax Petroleum will continue to retain the existing management team and employees.

中石化同时表示，收购完成后，将继续保留Addax石油公司原有的管理团队和员工。

As a multi-national oil and gas exploration and development company, Addax Petroleum in West Africa and the Middle East have oil and gas assets.

作为一家跨国油气勘探开发公司，Addax石油公司在西非和中东拥有油气资产。

Top of the list was Sinopec's $8bn takeover of Geneva-based Addax Petroleum, a UK-listed oil producer.

排在首位的，是中石化以80亿美元收购Addax石油公司的交易。

Special pump company's main products are: J Series piston metering pumps, J Series divide metering pumps, ADX | DX series of small flow of centrifugal pumps, TA | TE Petroleum and Chemical Process pump, TH standard chemical pump, FY Double exports of high temperature under the pump, HZW Chemical axial flow pump, HHW Francis chemical pumps, methylamine pump spare parts, chemicals and medicine system devices.

特种泵业公司的主要产品有：J系列柱塞计量泵、J系列隔膜计量泵、ADX|DX系列小流量离心泵、TA|TE石油化工流程泵、TH标准化工泵、FY双出口高温液下泵、HZW化工轴流泵、HHW化工混流泵、甲胺泵备件、化学加药系统装置等。

All of our equipments were brought in from Taiwan and Germany. Our company mainly accepts OEM business and produces stainless steel valve, pump, ship hardware,construction hardware, impeller and other precise mechanical parts. The products are used for many industries such as chemicals, petroleum, hydro-machine, medical appliance, vehicle, ship, weapon, sports instrument, construction fitment and aerostat, etc.

浩宇精铸的全套设备从台湾和德国引进，公司主要以承接客户的委托加工，生产不锈钢阀门、泵、船用五金、建筑五金、叶轮以及其他各种精密机器零件，产品服务于化工、石油、流体机械、医疗器械、车辆船舶、兵器、运动器械、建筑装潢、航天航空器等广泛领域。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。