pitching pavement造句

• But during the construction of high - grade highway , our highway departments have concentrated on the capacity of pitch mixtures and ignored the capacity of the rock materials . the small scale , clutter kinds , high cost and different quality of rock material production lead to the large gap between the standard of our pitch pavement and foreign modern standard
  但在高等级公路的建设过程中，我们的公路部门大都将注意力集中于沥青胶合料的性能上，往往忽视了矿料的性能，加上石材生产规模性差、品种杂、成本高、质量参差不齐等问题，使得我国沥青路面的建设水平与国外先进水平相比差距较大。
• In this article we will prove the feasibility of highway construction rock material production base in hubei province from three aspects : economy , technique and finance . then we will researche the management of rock material production base from two points of view : property right dividing and corporate governance . and we hope the production base may improve the capacity of pitch mixture and prolong the pitch pavement life by modern production technics , scientific composing design and high economic income and serve for the construction of high - grade highway in hubei province
  本文从经济、技术和财务三方面论证了建立湖北省公路建设石材生产基地建设方案的可行性，并从产权界定和公司治理结构两个角度对石材生产基地的运营做了进一步深入的研究，希望以精良的矿料制备、科学的组成设计和较高的经济收益，来改善沥青混合料的路用性能，延长沥青路面的使用寿命，更好地服务于湖北省的高等级公路建设。