查询词典 petroleum asphalt

The asphalt concrete track resistant modifying agent is characterized in that the asphalt concrete track resistant modifying agent consists of raw materials with the weight portion ration of 65 to 80 portions of low density polyethylene, 10 to 30 portions of anchoring agent, and 0 to 5 portions of activated rubber powder. The anchoring agent is petroleum resin or abietic resin.

沥青混凝土抗车辙改性剂，其特征在于它由以下原料组成，各原料质量份配比为：再生低密度聚乙烯65～80份，增粘剂10～30份，活化橡胶粉0～5份；所述的增粘剂为石油树脂或松香树脂。

China Yili Petroleum Company engages in refining heavy oil into asphalt, fuel oil, and lubricants in China.

中国石油亿利公司主要从事提炼重油变成沥青，燃油和润滑油在中国。

Wax and asphalt solid precipitation in oil and gas recovering process is a problem considering very much at home and abroad in the petroleum industry.

油气开采过程中的蜡质和沥青质等固相沉积问题，是目前国内外研究的热点和难点。

The main product has :70 - 90 # back to road asphalt, and a variety of aromatic naphthenic base oil, rubber oil mill, oil slurry, such as petroleum coke.

主要销售的产品有：70--90#重交道路沥青，以及各种环烷基芳烃油、轧胶油、油浆、石油焦等。

By the distribution of petroleum by-products, the main species include: petroleum coke, asphalt, sulfur, paraffin, fuel oil, solvent oil, 90 # automotive unleaded gasoline, 180 # air scrubber Friends, 0 # diesel oil, since each type of product models many not to introduce them one by one (we can according to customer's specific requirements for ordering) to establish a stable market network is our goal, but also aims to target customers provide the necessary products, we will ensure ample supply and low prices.

石油焦 、沥青、硫磺、石蜡、燃料油、溶剂油、90#车用无铅汽油、180#航空洗涤友，0#柴油等，由于每类产品的型号众多，暂不一一介绍（我们完全可以根据客户的具体要求订购）建立稳定的市场网络是我们的目标，更旨在为目标客户提供所需的产品，我们将保证货源充足，价格低廉。

Used only for China's annual oil bitumen membrane roofing repairs up to 240 million ㎡, petroleum asphalt binder by 27 million tons, repair cost of over 1.2 billion.

我国每年仅用于屋面修缮的石油沥青卷材达2.4亿㎡，石油沥青胶结材达27万吨，修缮费用超过12亿元。

With a purpose of making comprehensive use of heavy residual oil, condensed polynuclear aromatic resin is prepared using petroleum asphalt as raw material and terephthalyl alcohol as cross-linking agent under the catalysis of concentrated sulfuric acid or p-toluensulfonic acid.

从综合利用重质油出发，以石油沥青为单体，对苯二甲醇为交联剂，在浓硫酸或对甲苯磺酸催化下合成了缩合多环多核芳香烃树脂。

Bap concentrations in petroleum asphalt were determined using the high-performance liquid chromatographic technique.

Bap含量，石油沥青仅含0.0004％～0.0008％，而煤焦沥青中含0.46％。结论：石油沥青急性经口属微毒物质，在常温及非高温加热融化情况下，不具有动物致癌作用。

Occupational hazard ; Hygienic standard ; Petroleum asphalt fume

由于石油沥青用途广泛，在生产和使用过程中产生大量烟气，对职业接触人群的健

The paper describes in detail the four factors resulting in the corrosion of buried steel pipeline,that is environment,corrosion control effectiveness,material of pipe steel,and stress of pipeline,presents a total statistics on petroleum asphalt,coal-tar enemal,extruded polyethylene coating,PE tape,FBE,and multiple coating system and the individual percentage of theirs per years during 1990-1995,and points out that the selection of all kinds of coatings,being different behaviors,should be defermined according to the geological conditions and corrosive environments along pipeline route.

阐述了埋地钢质管道发生腐蚀的四个影响因素，即环境、腐蚀防护效果、钢管材质和制造工艺以及应力水平，统计了1990-1995年石油沥青、煤焦油瓷漆、挤塑聚乙烯、PE胶带、FBE、复合覆盖层的涂敷量，指出防腐覆盖层各有优缺点，应根据管道线路的地质条件、腐蚀环境等而定，目前应建立防腐层的综合评价方法以解决防腐覆盖层的设计问题，同时还应对钢管表面处理、现场补口加以重视，在采用高强薄壁钢材时应考虑壁厚要求。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。