These systems could be used in an early warning capacity.

an early warning system (= of enemy attack)

预警系统

Wax distribution in two typical paving asphalts

两种典型道路沥青中的蜡分布

And the prepared SBR/ LDPE blends modified asphalts showed much better storage stability at high temperature.

结果表明：采用预先制备的SBR/LDPE共混物所得到的改性沥青能够在高温下稳定贮存。

The group constituents of the final mixture are quite similar to those of conventional asphalts.

这种混合物的族组成与常规沥青很相似。

Investigation of Changes and Kinetics of Chemical Group Compositions of Petroleum Asphalts in Continuous Heat and Air Aging

石油沥青在连续热和空气老化中化学族组成的变化及动力学研究

Comparison of performances of some polymer modified asphalts

几种聚合物改性沥青性能的比较

Effect of absorbing oxygen on the physico-chemical properties of asphalts and their constituents

吸氧对沥青及其组分物化性质的影响

The Low Temperature Ductility Norm of Road Asphalts

道路沥青的低温延度指标

The higher the aging temperature, the more remarkably the various constituents of asphalts would change.

随热和空气老化温度的升高，各组分含量的变化更为显著。

High performance and stabilization of styrene butadiene rubber modified asphalts with reactive blending

丁苯橡胶改性沥青的高性能化和稳定化

Research and development of highway paving asphalts

高速公路用石油沥青的研制与开发

Investigation on oxygen absorption of Petroleum Asphalts and their constituents

石油沥青及其组分吸氧性能研究

The experimental results show that each constituent of asphalts changes into the near heavier one;

结果表明，沥青的各组分变重，平均分子量增大；

Study of Modified Mechanisms of SBS and SBR Modified Asphalts by Contrast

SBS与SBR改性沥青改性机理对比研究

Evaluation of Low Temperature Performances of Polymer Modified Asphalts by Force-Ductility Test

用测力延度试验评定聚合物改性沥青低温性能

The Dependence of Modify Effect of SBS on Based Asphalts

SBS改性效果对基质沥青的依赖关系

Achievements Introduction of Petroleum Asphalts and Their Production Techniques

石油沥青类产品及其生产技术成果介绍

Research progress of ground tire rubber modified pavement asphalts

废橡胶粉改性道路沥青的研究进展

The true molecular weight distribution curve can distinguish the performance of different asphalts quickly.

根据准确的相对分子质量分布图可以快速对比不同沥青的性能。

Characterization of the Anti-Aging Performance for Two Paving Asphalts

两种道路沥青抗老化性的表征