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养护     
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  maintenance
     Study on Decision Optimization of Pavement Maintenance Management System for Expressway
     高速公路路面养护管理系统决策优化的研究
短句来源
     Study on Management System of Expr Essway Pavements Maintenance
     高速公路路面养护管理系统研究
短句来源
     The Development of Machanization of High Type Highway Maintenance
     高等级公路养护机械化发展之我见
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     LYB200 Bituminous Pavement Maintenance Mixer
     LYB200型沥青路面养护拌和机
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     Pavement Evaluation and Maintenance Need Analysis of Hangzhou Highway Network
     杭州市路面评价与养护需求分析
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  curing
     in 5% Na_2SO_4 liquor curing, shrinkage falls 88.1% and is closed to zero shrinking.
     在5%Na_2SO_4溶液养护制度下,收缩率降低88.1%,试体接近零收缩。
短句来源
     When fly ash proportion reaches to 50% of binder sum,hardening accelerator proportion reaches to 1.5%,SX-Superplasticizer proportion reaches to 1.15%,3 day compressive strength of concrete can reach to 11.9 MPa,7 day compressive strength of concrete can reach to 18.5MPa,28 day compressive strength of concrete can reach to 36.5MPa in standard curing condition.
     当粉煤灰掺量占胶凝材料总量50%、早强剂掺量1.5%、SX-高效减水剂掺量1.15%时,标准养护下,3d强度达11.9MPa、7 d强度达18.5MPa、28 d强度达36.5MPa。
短句来源
     Study on Effect of Curing Schedule on the Strength of RPC
     养护制度对活性粉末混凝土(RPC)强度的影响研究
短句来源
     Computer Measuring Device for Curing of 670t/h Boiler Refractory Belt
     670t/h锅炉卫燃带养护微机测量装置
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     Study on the Effect of Wet-hot Curing System on the Strength of RPC200
     湿热养护制度对RPC200强度影响的研究
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  maintain
     ZYZ-88 Road Maintain Van for Asphalt Pavement
     ZYZ-88型沥青路面综合养护
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     The mixture of CXY and the cement slurry in volume ratios 75∶25 and 25∶75 has setting time longer than the cement slurry does and after 24 hrs of maintain at 70℃ gives set mass of strength 9-10 and 21-19 MPa.
     CXY与水泥浆的混浆可固化 ,稠化时间较水泥浆延长 ,体积比为 75∶2 5和 2 5∶75时 ,在 70℃养护 2 4h后固结强度分别达到 9~ 10和 2 1~ 19MPa。
短句来源
     Development and Present Situation of Highway Maintain Machine in Our Country and Abroad
     国内外公路养护机械的发展与现状
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     Using the method of gray relevance analysis, anevaluating model of the rationality of maintain mechanism configurationwas set up and developed relevant application software.
     应用灰色关联度分析方法,建立了养护机械配置合理性评估模型,进行了算例分析,并开发了高速公路养护机械配置合理性灰色关联度分析应用软件。
短句来源
     2. The design of the inputing expressway maintain datum system with PDA.
     2、高速公路养护数据PDA录入系统的设计。
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  conserve
     Lawn Conserve And Management In North Area
     浅谈北方地区草坪的养护与管理
短句来源
     Study on the Conserve Management of Raiseing Speed Railway
     提速铁路轨道养护管理研究
短句来源
     Theconcrete representative value coefficient of same condition specimens is 1.13, which is alittle bigger than the criterion’s 1.10.In winter, antifreeze mixed in and adopted heat preservation conserve, the pumpingconcrete’s strength increasing also match the logarithm curve.
     得到泵送混凝土同条件养护试件的强度代表值系数为1.13,略大于规范规定值1.10。
短句来源
     Lawn should conserve and management scientifically according to its growth habit,site environment,growth status and purpose so as to make it normal,cleaning,flourish.
     草坪建好后,要根据草坪植物的生长习性,立地环境,生长状况及草坪的用途等进行科学的养护管理。 使草坪正常生长,平整如茵,青翠茂盛、持久不衰,达到预期的绿化效果。
短句来源
     The Basic Status and the Development Direction of Free-way Conserve Mechanization in our Province
     我省高速公路养护机械化的现状与发展
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  maintenance
The results show that the integrated user access control method can reduce the costs of system security maintenance and management.
      
The efficiency of APR set construction is improved by bidirectional and hop-by-hop routing update during routing discovery and routing maintenance process.
      
euphratica leaves exhibited a higher capacity to exclude salt in a longer period of increasing salinity, thus limited salt-induced lipid peroxide and MP, which contributed to membrane integrity maintenance and salt tolerance of P.
      
Given these facts, some management measures for conservation and restoration of the riparian forests are proposed, including the establishment of riparian forest buffer belt, bank stabilization measures, and maintenance of flood protection.
      
CWD is an important functional and structural component of forested ecosystems and plays an important role in nutrient cycling, long-term carbon storage, tree regeneration, and maintenance of heterogeneous environmental and biological diversity.
      
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  curing
Leaves of Phyllanthus singampattiana, locally known as Aathuchadai by the Kanis of Tamil Nadu in India is consumed for curing jaundice, diarrhea and dysentery.
      
Fourier transform infrared (FTIR) analysis was used to identify the chain structure of the UV-curable polyurethane prepolymer based on HTPB and the curing process.
      
when the ESO content is 30% and the curing agent content is 7%, the ESO toughened phenolic resin possesses optimal performance.
      
When the content of nano-SiO2 was below 1.5%, the amount of free formaldehyde decreased, and the viscosity and bonding strength of resin increased with an increase in the added nano-SiO2, which did not prolong the curing time.
      
The curing behavior of BLF resin adhesive, studied by TG-DSC and IR analyses, showed that BLF resin adhesives had a lower curing temperature than PF adhesives but had the same characteristic trough in IR spectra as PF adhesives.
      
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  maintain
Nonlinear optimal predictive controller for static var compensator to improve power system damping and to maintain voltage
      
The main objectives of this paper are to simultaneously improve power system damping and to maintain voltage at the static var compensator (SVC) location bus simultaneously.
      
Simulation results have shown that the controller can not only attenuate power system oscillation effectively but can also maintain voltage at the SVC bus location.
      
This allows us to maintain the throughput increase of a multi-carrier code division multiple access (MC-CDMA) system with minimal loss in performance and no bandwidth expansion.
      
The ecological water requirement of forests is defined as the water resources used to maintain and improve the natural balance of forest ecosystems, which can be expressed by evapotranspiration of trees during the growing season.
      
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  conserve
Ex situ conservation efforts should focus on enhancing the exchange of seeds and seedlings among populations to facilitate gene exchange and recombination, and to help conserve genetic diversity.
      
In addition, more concrete measures are needed to conserve the plant diversity and the natural ecosystem of Hebei Province and even the whole region encompassing Beijing and Tianjin.
      
The perturbations conserve leave the ratio of the distance between a fluid particle and the jet axis to the azimuthal vorticity component unchanged in each fluid particle.
      
It is established that the interfering flows generated by the frame and the propelling system conserve their individuality far downstream of the body.
      
The modification of histone plays a crucial role in regulating chromatin states that conserve transcription programs and provide a mechanism for chromatin states to be maintained as cells proliferate.
      
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  其他


~~

本实验进行了矽酸盐水泥在各种情况下减缩作用-抗压强度-抗折强度之间关系的研究,包括水泥的品种不同、标号不同、以及同一水泥而细度不同或养护温度不同等情况。 实验结果证明:就发展速度而言,前期抗折大于抗压,后期抗压大于抗折,而减缩作用则总是处于二者之间。就具有同一强度时之减缩量而言,则水泥愈细,减缩愈少,而养护温度较高者,减缩亦较多。

~~

本文系根据我国具体情况,提出多种方法,来配制1天强度不低于200公斤/公分~2、28天强度不低于400—600公斤/公分~2的快硬高强度混凝土,并对这些方法进行比较论证;目的在取消昂贵的蒸汽养护工序,以降低装配式钢筋混凝土构件的成本。 本文曾在1957年6月德国特累斯顿第二届国际装配式钢筋混凝土会议上宣读。

The Yangtze Valley Hydro-electric Scheme is an abnormally tremendous engineering project in the world. The trestle bridges required for concreting the dam only are of abnormal size for instauce. The main trestle bridge has to carry five lines of standard gauge railway track and two tracks for loading about 30 huge concreting cranes of about 700 tons in dead weight each. The bridge required for the first stage of work is about 90m.in height,and later on the whole flooring system of the bridge has to be lifted...

The Yangtze Valley Hydro-electric Scheme is an abnormally tremendous engineering project in the world. The trestle bridges required for concreting the dam only are of abnormal size for instauce. The main trestle bridge has to carry five lines of standard gauge railway track and two tracks for loading about 30 huge concreting cranes of about 700 tons in dead weight each. The bridge required for the first stage of work is about 90m.in height,and later on the whole flooring system of the bridge has to be lifted twice, each time being lifted 35m. in height. In addition, the bridge must be constructed and lifted with in the given comparatively short period of time. In this paper, some proposals for the preliminary design of the trestle bridge are presented. In the design, the super-structure contains a series of welded steel plate girders. The main girders are 24 meters span all-welded steel Plate girders of the standard railway bridge design. Two alternative designs of the trestles are proposed for comparison,one being composed of reinforced concrete tube posts of 2.0 meter diameter,similar to those used in the sub-structure of the famous Yangtze Bridge in Wuhan, the other being of steel structure. Necessary figures of the results of the design are given including the quantity of materials, the time and procedure of erection,etc. On account of economyof steel the design of R.C. trestles is suggested to be adapted in comparison with the steel structure.

用电阻丝应变片电测应力的技术近年来得到很快的发展,对于许多应力测定问题都得到广泛的应用,但是仍有一些实际应用中的问题还没有得到完善的解决。考虑到南京长江大桥管柱应力测定的要求,我们必须解决在混凝土内装置电阻丝应变片能够抵抗潮气和为时36~48小时的80℃蒸汽养护的侵蚀,而且能够经常在深水中正常使用,期限长达三、四个月之久等等问题。为此,我们对各种不同方法曾在郑州黄河桥工地和铁道科学研究院实验室内进行了试验研究。作者所提出的某些方法在试验中证明得到成功。本文就是我们所进行的这些工作的报道。

 
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