耐久性

It is shown from the analysis results that in order to achieve the submarine tunnel service life of 100 years,the side concrete coating thickness in the sea area tunnel section is recommended to be 60 mm and additional reasonable construction error,the con.

通过对胶州湾海底隧道工程所在地的环境作用进行分析，以基于钢筋混凝土劣化模型的设计方法，对海底隧道衬砌混凝土的耐久性进行研究。

According to the usage function and application characteristics of HBSPC, combined on test of this research and related specification,we present the technique request of original material for the HBSPC, it is the main technique way to raise concrete strength and durability by making use of different species, different amount and admix of quality to cipate with same quantity or the super quantity replace parts of cements in the concrete.

根据HBSPC的使用性能、应用特点，结合试验研究及相关规范，提出HBSPC用原材料的技术要求，明确了利用不同品种、不同质量的掺合料等量或超量取代混凝土中的部分水泥，是提高混凝土强度和耐久性的主要技术途径。

Its lumber material is narrow for the alburnum, distributes in north compared to the south narrowly, light yellow arrives the yellow light yellow, the heartwood to brown brings slightly red; Has the resin, the durability is bad; The lumber texture, the density, standard natures and so on the festival receive the geography condition influence which grows, is widespread as a result of this lumber distribution, but therefore the lumber material the variation is greatly more obvious than because of the condition other tree seeds; The lumber weight is ordinary, solid.

其木材材性为边材窄，分布在北部的比南部的更窄，浅黄到黄色，心材浅黄至褐色略带红色；有树脂，耐久性差；木材的纹理、密度、节子等格质均受生长的地理条件影响，由于该木材分布广泛，所以木材的材性因条件而变异大比其他树种明显；木材重量一般，较结实。

Alkali aggregate reaction is one of the important factors that affect the durability of concrete structures.

混凝土碱-骨料反应是引起混凝土耐久性下降的主要原因之一。

Alkali aggregate reaction is one of the important factors to affect the durability of concrete structures.

碱集料反应是影响混凝土耐久性下降的重要原因之一。

Coatings based on alkyd resins tend to be relatively low cost but exhibit poor durability.

在多元醇酸树脂为基础的涂料成本较低但耐久性不佳。

The author puts forward that the durability should be the criteria of the review of the function of bridges. And multilevel fuzzy comprehensive ways are also employed as reviewing ways on the basis of fuzzy set theory and analytic hierarchy process. To make an automatic review system, a safe and systematical subordinate function has been established.

提出了将耐久性作为评价桥梁使用功能的评价指标，并采用基于模糊集合论和层次分析法的多级模糊综合评价方法，为了使评价过程自动化，建立了完整、系统的隶属函数体系。

The adoption of stone matrix asphalt SMA-16 ,with SBS modified bitumen ,in the pavement course on Shen-Da Freeway rebuilding is one important decision based on scientific experiment and characteristics of shenda highway rebuilding itself .It is not only suit heavy traffic and difference in temperature variety the factor of etc. environment request road, but also to road usage function for anticatalyst and durability with enduring all having very big exaltation, guaranteeing the road.

沈阳至大连高速公路改扩建工程路面表面层采用沥青玛蹄脂碎石混合料SMA- 16型(简称SMA - 16 )，沥青采用SBS改性沥青，是在科学试验的基础上，结合沈大路自身的特点所做的重大决策；它不仅适合沈大路交通量大、温差变化大等环境因素对路面的要求，而且对路面的抗滑性和耐久性均有很大的提高，保证了路面的使用功能。

The mechanism of the OGFC pavement functions is fully analyzed, with a description of the mix ratio design and raw material selection, including the function and features of permeability, antiskid , noise reduction, temperature reduction, etc.

全面分析了OGFC路面的功能与作用的机理，介绍了OGFC配合比设计和原材料选择，分析了透水性、抗滑性、降噪性和降温性等功能和特点，最后也分析了耐久性差、生产成本高、维护成本高等不足。

As an important non-structural member, the reliability and durability of building balustrade will affect directly people s lives and properties safety.

建筑护栏作为重要的建筑非结构构件，其安全性、耐久性直接影响到人民群众生命财产的安全。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。