查询词典 petroleum asphalt

After brushing bamboo with slushing compound and melted petroleum asphalt, the percentages of water-absorption of bamboo are 6.1% and 3.8%, respectively, after immersion in watertfor seven days.

用沥青液及熔化的石油沥青分别涂刷竹材，浸水七天后竹材的吸水量各为6.1％及3.8％，若用松香的酒精溶液涂布竹材，其防水效力不大，并且和松香的浓度不成正比的关系。

The use of petroleum asphalt, especially the road asphalt and its important roles in national economywere introduced.

介绍了石油沥青，特别是道路沥青的用途及在国民经济中的重要地位。

Objective:The purpose of the experiment was to study the carcinogenic and mutagenic effects of petroleum asphalt.

目的：研究石油沥青有无致突变和致癌作用。方法：选用大鼠经口急性毒性试验、Ames试验、小鼠经口微核试验、大鼠气管注入及兔经皮涂抹致癌试验，研究石油氧化及直馏沥青的急性毒性以及致癌和致突变作用。

The modified asphalt is composed of 70-95 percent of petroleum asphalt and 5-30 percent of nonmetal powder of abandoned circuit boards by weight.

改性沥青由重量百分数为70～95％的石油沥青和5～30％的废弃电路板非金属粉组成。

It is found that modified asphalt added 4 percent SBS is able to improve high-temperature stability, low-temperature anti-cracking performance and high-temperature susceptility of petroleum asphalt,which is enough to satisfy the performance stand.

结果表明，石油沥青中添加 4 %SBS可以明显改善石油沥青的高温稳定性、低温抗裂性和感温性，使其基本满足铺路沥青的要

In view of the present situation of domestic asphalt such as insufficiency in production,incompleteness in assortment and inferior quality,thus resulting in importing large amount of asphalt etc., measuresfor speeding up the production of high quality petroleum asphalt such as selection of crudes suitable for producing asphalt, revision of the national standards, e...

针对我国石油沥青产量不足、品种不全、质量不高，导致近年来大量进口的现状，重点论述了加快优质石油沥青生产的措施，如选择适于生产沥青的原油，修订国家标准，创建名牌产品等，力争尽快提高我国石油沥青的产量和质量，扩大其市场占有率。

Its petroleum asphalt can be burnt to produce coke, which is the fuel source for steelmaking; can be blended with anthracite and liquid asphalt, then used as blast furnace refractory material or as the primary component of electrolyte aluminum anodes, electric steelmaking electrodes, heat exchangers, and for other high temperature resistant uses; and can be used undiluted for paving roads and roofs.

其石油沥青，可以烧死生产焦炭，这是燃料来源，为炼钢；可以结合在一起无烟煤和液态沥青，然后用作高炉耐火材料或作为主要成分的电解质铝阳极，电炉炼钢电极，热交换器，并为其它耐高温用途；可用于纯粹为摊铺路面及屋顶铺平道路。

Using natural asphalt, petroleum asphalt and coal tar pitch as the main raw material, made of asphalt felt, fetal asphalt felt paper, solvent-based and water-based emulsion asphalt type or types of asphalt rubber coating, ointment, has a good bonding, plastic, water resistance, anti-corrosion and durability.

以天然沥青、石油沥青和煤沥青为主要原材料，制成的沥青油毡、纸胎沥青油毡、溶剂型和水乳型沥青类或沥青橡胶类涂料、油膏，具有良好的粘结性、塑性、抗水性、防腐性和耐久性。

Firstly, the smashed and sorted nonmetal powder of abandoned circuit boards is heated to 80-120 DEG C and dried for 30-60min and then added to liquid petroleum asphalt to be blended uniformly through high speed shearing, thus obtaining the modified asphalt.

先将经过破碎分选的废弃电路板的非金属粉，加热到80-120℃干燥30-60min后加入到加热到液态的石油沥青中，经高速剪切使其共混均匀，即得改性沥青。

Through some information investigation and pavement crack pouring practices,it is found that as a new material,HR polymer asphalt crack pouring material forming by mixing AH-70# heavy-traffic petroleum asphalt with HR polymer in fixed proportion can by used to repair asphalt pavement cracks,and the effect is good,which has positive significance for prolonging the maintenance period of roads and reducing maintenance costs.

通过一些资料调查及路面灌缝实践发现，将AH-70#重交通石油沥青与HR型聚合物按一定比例掺配合成的HR型聚合物沥青灌缝新材料用于修补沥青路面裂缝，效果较为明显，对延长道路的维护周期、减少养护费用具有积极的意义。

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。