查询词典 petroleum

It indicates that some of petroleum coke combustion agrees with one step model while other of petroleum coke combustion agrees with two steps model.

燃烧的热重分析结果表明，有些石油焦的燃烧符合一步反应模型，有些石油焦的燃烧符合明显的两步反应模型。

Look inside the medicine cupboard for more petroleum products, medical paraffin and petroleum jelly.

看看药柜里面，找找更多的石油产品，药用蜡和石油膏。

Look inside the medicine cupboard for more petroleum products, medical paraffin petroleum jelly.

向药厨里看看，你可以 www.ssbbww.com 找到更多的石油产品，如药用石蜡和凡士林。

Using China Petroleum Pipeline Engineering Corporation's fundamental organization—Petroleum Pipeline Civil Design Team as the research target, this paper explored the concept of team knowledge, the creation of team knowledge, the transformation mechanism of team knowledge, and the evaluation of team effectiveness.

本文以中国石油天然气管道工程有限公司的基层组织——石油管道土建设计团队的知识管理体系建设应用研究为例，对团队知识的概念、团队知识的创造、团队知识的转化机理、团队绩效的评价等问题进行了探讨，并针对团队自身的特点，建立了一个实用性强且操作简便的适用于石油管道土建设计团队的知识管理体系，创建了良好的知识积累、知识共享、知识创新的机制。

Coal tar pitch and petroleum pitch were prepared from petroleum residues and coal tar by air blowing respectively.

分别以煤焦油为原料在300℃空气氧化120min～480min和以石油渣油为原料在220℃空气氧化300 min～720 min，制备了一系列具有相近软化点的煤焦油沥青和石油沥青。

Coal tar pitch and petroleum pitch were prepared from petroleum residues and coal tar by thermal reactions respectively.

分别以煤焦油为原料，在430℃热缩聚50min～270min和以石油渣油为原料在 310℃热缩聚130 min～370 min，制备了一系列具有相近软化点的煤焦油沥青和石油沥青。

objective to observe the antitumor activities of different solution extracts of plumbago zeylanica l.in vitro.method mtt method was used to detect the inhibitory effects on four kinds of cancer cells.results chloroform extracts had significant inhibitory effects on the breast cancer cell(bre-04),the nerve cancer cell(n-04) and the lung cancer cell(lu-04),ic50 were 0.2699mg/ml and 0.2634mg/ml,0.4961mg/ml respectively.ic50 of chloroform extract on the hepg2 was 0.9379mg/ml.ic50 of petroleum ether extracts on bre-04,n-04,lu-04 and hepg2 was 0.5902mg/ml,0.5725mg/ml,0.7938mg/ml,0.6374mg/ml;ethyl acetate extracts had fairly inhibitory effects on the lu-04,ic50 was 0.7343mg/ml;n-butanol extracts and water-solubility extracts had notsignificant inhibitory effects on the four kinds of cancer cells.conclusion the antineoplastic effective parts of plumbago zeylanica l.were chloroform and petroleum ether extracts.

目的 探讨白花丹体外抗肿瘤作用的活性部位。方法 mtt染色法对白花丹五种溶剂提取物体外抗肿瘤活性进行了初步的研究。结果氯仿提取物对乳腺癌细胞（bre-04）、神经癌细胞（n-04）、肺癌细胞（lu-04）有较好的抑制生长作用，ic50分别为0.269 9 mg/ml、0.263 4 mg/ml、0.496 1 mg/ml，对肝癌细胞hepg2抑制作用差， ic50为0.937 9 mg/ml；白花丹石油醚提取部位对乳腺癌细胞（bre-04）、神经癌细胞（n-04）、肺癌细胞（lu-04）、肝癌细胞hepg2的ic50分别为0.590 2 mg/ml、0.572 5 mg/ml、0.793 8 mg/ml、0.637 4 mg/ml；乙酸乙酯提取物对肺癌细胞（lu-04）有一定的抑制作用，ic50为0.734 3 mg/ml；水溶性提取物以及正丁醇提取物无明显抑制肿瘤作用。结论白花丹氯仿提取部位、石油醚提取部位体外抗肿瘤作用较好，值得对其提取部位进一步分离纯化并研究其抗肿瘤作用机制。

State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China

中国石油大学油气资源与探测国家重点实验室，北京，102249

China University of Petroleum State Key Laboratory of Petroleum Resource and Prospecting, Beijing 102249,China

中国石油大学油气资源与探测国家重点实验室，北京 102249

State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China

中国石油大学油气资源与探测国家重点实验室，北京 102249

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了