查询词典 pavement

During the previous analysis of asphalt pavement structure with cracks, the stress intensity factors were usually calculated approximatively using plane strain model for some limitation. However, the assumptive load of this model is not coincident to the practical load.

在以往分析含裂缝的沥青路面结构时，由于条件的限制，通常是假设沥青路面结构近似为一平面应变模型，但是这种模型所假设的荷载与实际作用的荷载有较大的区别。

A new method of the design for tie bar and falsework during the construction of the thin-wall of bridges;2. Study on the Dowel and Tie Bar in Jointed Plain Concrete Pavement;3. In order to overcome the problem of early failure of the tie bar in the plastics injection molding machine, an integrated finite element analytic model was formulated dealing with the tie bar s,fixed platen, movable platen, and rear platen.

针对注塑机拉杆的早期断裂问题，为使拉杆应力分布合理化，以拉杆与定模板、动模板和调模板等组成的整体有限元分析模型为基础，用优化方法研究拉杆卸载槽的合理位置以及各模板基本厚度的确定，以及拉杆卸载槽的位置和各模板基本厚度对拉杆应力分布的影响。

This article researches on the calculation method of thermal stress of cement concrete pavement on lean concrete base course.

本文围绕贫混凝土透水基层水泥混凝土路面温度应力计算方法展开研究。

Finite element method is employed to analyze to the effect of asphalt pavement with changing thickness and modulus of semi-rigid base course.

利用有限元法，通过改变半刚性基层的厚度和弹性模量对沥青路面的影响，分析得出了适当的增加半刚性基层的厚度、底基层的厚度和底基层弹性模量，可以提高路面的力学性能和使用寿命，但是当基层的强度达到一定的强度后，再增加它的强度对路面的影响不是太大。

You don't want to be confined to the hard, smooth surfaces of the pavement and bitumen.

你不想局限于硬，表面光滑的路面和沥青。

Currently, only parts of domestic highways are selected to be paved with porous asphalt, with an aim to improving the sections in which water tends to gather because of linearity. Observation and comparison reveal that this practice is effective to improving the water clogged on roads and lowering the rate of traffic accidents. However, complete pavement is not done owning to many factors. The main reason is that the result is not outstanding on the north trial section.

目前国内高速公路仅限於局部路段为改善因线型於雨天易积水路段，改铺多孔隙铺面，经观察与比对铺筑前后结果，多孔隙沥青铺面在雨天确能有效改善路面积水问题，降低交通事故肇事率；惜因各种因素而未能全面使用，究其因主要铺筑於北区试验路段，绩效不甚显著。

His short birdlike pace measured the Westminster pavement to the small doorway at No.

他迈着短促的步伐通过威斯明斯人行道，来到大乔治街2号门口。

The water damage has become the one of most serious destruction forms in our country's bituminous pavement.

水损坏已成为我国沥青路面最严重的破坏形式之一。

The parameters and structure of bituminous mixture determine the performances of asphalt pavement.

沥青混合料的结构和参数决定了沥青路面的路用性能。

Thermal crack is a usual disease of bituminous pavement in the north and middle of China.

在我国北方和中部地区，低温开裂是沥青路面最常见的一种病害。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。