查询词典 type metal

This design topic is the design and manufacture process of thecompand type cast of metal mold for the high chromium white castiron milling of 80 millimeter diameter.

本次的设计题目是80mm高铬白口铸铁磨球金属型复合群铸模具设计及制造工艺。

The water ramjet based on the reaction between water and metal fuel belongs to a new type of underwater propulsion system .

基于水与金属燃料反应的水冲压发动机+是一种新型的水下动力装置。

And some traditional metal materials, non-metallic materials such as steel, cement, plastics, fibers and rubber has been widely used, and a new type of polymer materials is also a beginner's stage, but the very rapid development with very potential, and its positive features, intelligence, refinement of direction, conductive materials, energy storage materials, smart materials, nano materials, optical materials, biological activity, such as research in the field of materials are becoming increasingly active, the study of Polymer Materials very challenging, but also very innovative test of their own.

并且目前一些传统的金属材料，非金属材料如钢铁、水泥、塑料，纤维，橡胶等已经得到了广泛的应用，而新型的高分子材料还在一个起步的阶段，但是发展的很迅猛，具有很大的潜力，其正向功能化，智能化，精细化方向发展，导电材料，贮能材料，智能材料，纳米材料，光导材料，生物活性材料等领域的研究也日趋活跃，所以研究高分子材料很具有挑战性，同时也很考验自己的创新性。

These cylinders are protected by Type CG-3 fusible metal plug s with a nominal yield temperature of 212 F.

用标称变形温度212°F的CG-3型易熔金属塞保护这些钢瓶。

These cylinders are protected by Type CG-3 fusible metal plugs with a nominal yield temperature of 212 F.

用标称变形温度212°F的CG-3型易熔金属塞保护这些钢瓶。

These cylinders are protected by Type CG-3 fusible metal plugs witha nominal yield temperature of 212°F.

用标称变形温度212°F的CG-3型易熔金属塞保护这些钢瓶。

The burst pressure of the disk must not exceed the minimum DOT required test pressure of the cylinder (except as noted under Type CG-1); the fusible metal must yield between 157-170°F (165°F nominal).

破裂压力不能超过DOT要求的钢瓶的最小测试压力（除了在CG-1型那一节注明的）；易熔金属在157到170°F (标称165°F)之间变形。

Over the years, in order to improve combat survivability of aircraft, many techniques suppressing such explosion have been explored. The techniques can be divided into tWo types. One belongs to passive damage suppression, such as installing expanded metal material in fuel tank. The other belongs to impassive damage suppression, such as nitrogen diIution when fuel tank needs. Each type has advantages and disadvantages respectively.

多年来，为了提高飞机的作战生存力，人们研制和开发了多种燃油箱防爆技术，这些防爆技术主要分为两大类，一类是被动抑制损伤法防爆，如在燃油箱内充填防爆材料；另一类是主动损伤抑制法防爆，如在燃油箱内加入惰性气体，使的燃油箱的油气混合物惰化，从而达到防爆目的，但两类防爆方法各有优缺点。

The main research work of this dissertation is as follows: Based on the chemical reaction engineering theory and the nitrobenzene electroreduction mechanism, the plate and frame electrolyzer was designed and applied to the process of electroreduction nitrobenzene to p-aminophenol. This dissertation measured the residence time distribution data of the electrolyzer by means of the pulse response method and studied the rule of flow pattern along with the current capacity change. Under different conditions ,this dissertation studied the cyclic voltammetry properties of nitrobenzene on different electrodes by means of the dynamic cyclic voltammetry method and the electrode materials applied to the NB electroreduction have been selected primarily.Baseed on the results of cyclic voltammetry tests, this dissertation used p-electrode systems to measure the steady-state- polarization curves of nitrobenzene on different electrodes in H-type diaphragm cell, and obtained each primary factor s influence rule and the exchange current density value of each electrode.And then on the basis of the conclusions of fundamental researchs upword, the effects of influence factors on the the yield of p-aminophenol and the current efficiency,such as electrode material, current density, quantity of electricity circulated, nitrobenzene concentration . sulpuric acid concentration and so on, have been studied in detail in the systems of hign temperature , strong acidity and oxygen-poorthrough a series of electrolysis experiments in this paper.After all using Pb as anode Monel metal as cathode Dupont Nafion 417 cation-exchange membrane as membrane, this dissertation obtained the optimum technological condition: reaction temperature about 85C, current density 500A m-2, sulphuric acid concentration 20%wt.

论文的主要研究工作为：运用化学反应工程理论，结合硝基苯的电还原机理，设计出用于硝基苯直接电还原合成对氨基苯酚实验的板框式电解槽，并利用脉冲响应法测定了该板框式电解槽的停留时间分布数据，研究了流型随流量变化的规律；通过动态循环伏安法研究了硝基苯在不同电极上、不同条件下的循环伏安特性，初步评选出了用于硝基苯电还原的电极材料；结合循环伏安的测定结果，在H型隔膜电解槽中采用三电极体系测定了硝基苯在不同电极上、不同条件下的稳态极化曲线，得到了各主要因素的影响规律及硝基苯在各个电极上电还原的交换电流密度数值；在基础研究结论指导下，采用板框式电解槽，在高温、强酸、贫氧系统中，进行了一系列的电解实验，分别考察了电极材料、电流密度、通电量、硝基苯浓度、硫酸浓度等因素对收率及电流效率的影响，最终选择以蒙乃尔合金电极作为阴极、铅合金为阳极、Dupont Nofion 417阳离子交换膜为隔膜，得到由硝基苯直接电还原制对氨基苯酚的最佳电解工艺条件：反应温度85℃，电流密度500A·m~(-2)，硫酸浓度20％wt。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新