查询词典 bordeaux mixture

LiBOB was synthesized by an improved solid-state method. H2C2O4·2H2O was dehydrated to get anhydrous H2C2O4, and H2C2O4·2H2O was mortared with LiOH·H2O. The mixture of H2C2O4 and LiOH·H2O was preheated at 60 ℃ for 2 h before adding H3BO3 in several times to be mortared. In vacuum dryer, the mixture of the three starting materials was preheated in two steps: at 70 ℃ for 6 h and then at 100 ℃ for 3 h.

摘 要：用改进的固相法合成一种新型电解质锂盐——双乙二酸硼酸锂：首先将脱去结晶水的H2C2O4与LiOH·H2O研磨混匀，在60 ℃预热2 h后分批加入H3BO3，然后，于真空条件下在70 ℃和100 ℃分别保温6 h和3 h，得到LiBOB粗产品。

The conducting wall in micro-tube preheats the inlet mixture by axial heat transfer. The existence of conducting wall will help to reach full reaction in the micro-tube. As the inlet velocity increases, both the existence of the surface catalytic combustion and the gas phase combustion become the limiting factors on combustion. Wall material and equivalence ratio of hydrogen/air mixture have important influence on catalytic combustion of hydrogen.

计算结果表明：表面催化反应对空间气相反应有抑制作用；在微型管道内，通过导热壁轴向间的传热，预热入口混合气体，使氢气燃烧更加充分；随着入口速度的增大，燃烧过程同时存在着表面催化反应和空间气相反应两种控制因素；管壁材料和当量比对氢气的催化燃烧过程有重要的影响。

A uniform mixture of silicon powder (granularity≤0.044 mm) and polyvinyl alcohol solution (PVA,5 wt%) in response to a certain proportion was prepared.After sieving,prilling and vibration,the mixture was packed.Effects of the vibration frequency (14～50 Hz) and time (10~230 s) on packed density of powder were studied.

摘 要：将Si粉（粒度≤0.044 mm）和聚乙烯醇水溶液(聚乙烯醇质量分数为5%)按一定比例混匀，过筛造粒后，振动装料，研究了振动频率（14～50 Hz）和振动时间(10~230 s)对粉料填充密度的影响。

Field test results show that the rutting of asphalt rubber mixture over the high temperature performance of the original design of SBS mixture requirements.

现场的车辙试验结果表明橡胶沥青混合料的高温性能超过了原设计的SBS混合料的要求。

Additionally, the air cooling zone should be set up so as to cool the steam and air mixture. Thus, the steam and air mixture supercooling can be enlarged, the working medium loss reduced and the burden of air ejector taken away.

另外，应该设置空气冷却区，使蒸汽-空气混合物得到冷却，以增大排出的蒸汽-空气混合物的过冷度，减少工质损失，并降低抽气器的负荷。

On the base of various methods evaluating high-temperature stability of asphalt mixture and the fact that framework structure asphalt macadam mixture strength mainly from internal frictional resistance, dynamic load press-in test with confined pressure is adopted in the paper.

在综述沥青混合料高温稳定性各种评价方法的基础上，对强度主要来源于内摩阻力的嵌挤骨架类沥青碎石混合料，本文采用具有侧限、能反映材料3向受力状态的动载压入法进行研究。

At present, asphalt macadam is often used as bottom course of the overlay on old concrete pavement in order to restrain reflective cracking in the engineering. The results in this research indicated that the abilities of resisting reflective cracking of this mixture were poor. The modified full asphalt mixture is most capable of resisting reflection crack than the others.

目前在工程上为了防治反射裂缝，旧混凝土路面加铺层常采用沥青碎石作底面层，本文的研究结果表明，这种类型混合料抵抗反射裂缝的能力很差，而使用改性沥青的富沥青密实型级配混合料抵抗反射裂缝的能力最强。

Authors designed four mixtures of dense-graded asphalt stabilized macadam base with the method recommended by Technical Specifications for Construction of Highway Asphalt Pavement, Superpave design method, coarse aggregate voids filling method and Bailey method separately, and determined the pavement performances of asphalt stabilized macadam base mixture under the optimal oil-stone rate which include resistance capacity to vertical deformation and fatigue. Then, four design methods were compared and appraised. Based on the above study, a new asphalt-stabilized macadam base mixture gradation design method-five control sieve design method was put forward.

分别采用现行规范推荐法、Superpave法、主骨架空隙体积填充法和贝雷法设计了4种密级配沥青稳定碎石基层混合料，然后采用力学指标设计法确定了所设计的4种级配沥青稳定碎石基层混合料的最佳油石比，并对最佳油石比下的沥青稳定碎石基层混合料进行了抗永久变形性能和抗疲劳性能等路用性能的研究；根据设计过程和设计结果对4种级配设计方法进行了比较评价，在此基础上提出了新的密级配沥青稳定碎石基层混合料的级配设计方法－五控制点级配设计方法。

The relation of the water stability of asphalt mixture with the interaction of granite and asphalt was verified by freeze-thaw split test. It is found that there is a good corresponding relationship between the rheological property of granite asphalt mastic and the water stability of the granite asphalt mixture.

并通过冻融劈裂试验检验沥青混合料水稳定性与沥青和石粉交互作用能力之间的关系，发现花岗岩沥青胶浆的流变学性质与花岗岩沥青混合料水稳定性之间存在良好的对应关系。

The stone mastic asphalt design method was employed to design and prepare flame retardant asphalt mixture and the volumetric and pavement performance were tested. Both aggregates were substituted by mineral powder method and fuel burning simulation method was designed to investigate the flame retardancy of flame retardant asphalt mixture.

最后，进行SMA阻燃沥青混合料的设计与制备，并对制备出的沥青混合料进行体积性能与路用性能分析，采用矿粉替代集料后的氧指数法及燃料燃烧模拟法对阻燃沥青混合料阻燃性能进行了研究和分析。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？