材料

Purification of water containing microzyme with this novel material was studied,and parameters such as filtration efficiency,the variety of turbidity value of filtrate by means of infiltration and filtration were also determined.

介绍了一种新颖夹心式纳米超净化材料的制备工艺和净化除菌性能，通过对这种新型材料过滤酵母菌浊液的过滤效率以及滤液的浊度变化值等参数的测定，表明这种新型材料过滤效率很高。

It is of significance to study mineral materials, definition, classification research contents, relationship with mineralogy, development of mineral materials in the new century.

矿物材料研究具有重要意义，本文探讨了矿物材料的涵义、分类、研究内容、与矿物学的关系等问题，并思考了新世纪矿物材料的研究和开发。

Manufactures aerospace products including DMS-4-828 moldable shim material, MagRubber magnetic rubber inspection material, replication materials and sealants, special purpose foams, epoxies, and resins.

生产航空航天产品：成形垫片材料、MagRubber磁性橡胶检验材料、复制材料和密封胶、泡沫、环氧树脂和松香。

Owing to the good stability in light, heat and chemical characteristics, the rare earth-doped molybdate is a good kind of luminescent material, but there are few reports on it.

稀土钼酸盐发光材料由于具有良好的光热稳定性和化学稳定性，是一种很好的发光基质材料，但关于稀土钼酸盐发光材料的研究却少有报道。

Owing to the drawbacks of analytical shimming, this paper puts forward the concept of passive numerical shimming for searching a method of compensating Bz'easily to a high level and with a low cost. Based on the magnetic field caused by a magnetic moment, the distribution of moments in a superconducting NMR imaging megnet can be determined through some pseudoinversion algorithm directly from Bz'. The moments are used to compensate Bz'.

无源数值匀场的出发点直接是不均匀磁场的磁场偏差B〓本身；无源数值匀场的基础为磁性材料的磁矩所产生的磁场；由已知B〓，通过某种逆运算，确定磁性材料的磁矩在主磁体中的分布，实施此分布，以磁性材料的磁矩所产生的磁场直接对B〓进行补偿——这便是本文提出的无源数值匀场的概念。

This paper mainly studies effect and influence factor that typical corrosive medium (muriatic acid, vitriol, nitric acid, sodium hydroxide, sodium chloride etc.), consistence and condition temperature acts on the material coated on castiron centrifugal interface (PFEP, PPS, CPE, remodeled epoxy). It is studied that powder electrostatic spray, suspend fluid spray, suspend fluid electrophoresis underside coat etc. technics influences on coat quality coated with above four anticorrosive material. The property analysis is done that above four anticorrosive material and three coat technics adapt to centrifugal pump frame and running dynamic condition. In addition, the effect is introduced that castiron centrifugal coated anticorrosive material is used in coal water with alum.

本文侧重研究了典型腐蚀工作介质盐酸、硫酸、硝酸、氢氧化钠碱、氯化钠盐等品种、浓度、环境温度，对铸铁离心泵过流面的聚全氟乙丙烯、改性聚苯硫醚、改性氯化聚醚、改性环氧四种防腐涂层材料的试验使用效果和影响因素分析；研究了四种涂层材料粉末静电喷涂、悬浮液喷涂、悬浮液电泳底涂等涂装方法工艺对涂层质量的影响；四种涂层材料和三种涂装方法对离心泵结构和运行动态环境的适应性分析；介绍了铸铁离心泵防腐涂层在煤矿矾水中的应用效果。

The existing problems of the application of nano-technology in ord- nance protection were summarized.

结合纳米材料和军用装备的自身特点，着重从纳米技术在装备防护材料、电磁屏蔽材料、防腐技术、隐身技术等方面的研究进展、应用现状和发展趋势进行介绍。

The natural twist vibration equation is set up by making use of the constitutive relation of nonlinear material.

利用非线性材料的本构关系，建立了非线性材料圆杆的扭转固有振动方程，然后采用傅立叶级数法求得了圆杆扭转固有振动的所似解，通过实例计算讨论分析了非线性材料圆杆的扭转固有振动特性。

Finally, the grafting polymerization of textile materials initiated by microwave low temperature plasma was conducted. Knitted cotton fabric was grafted by AMPS first, then knitted cotton and terylene/cotton fabrics were grafted with AMPS/NIPA dualistic monomers respectively. By means of grafting polymerization, the P dualisticintelligent hydrogel was added to textile.The influences of the factors on add-on, such as treatment time and power of plasma, concentrations of crosslinking agent and total monomers, proportion of AMPS, polymerizing temperature and time etc, was studied fully. The optimal conditions of grafting polymerization initiated by microwave low temperature plasma were determined by orthogonal design, variance analysis and mathematical statistics method so as to analyze the main influencing factors. Then swelling/deswelling kinetics, temperature-sensitivity and pH-sensitivity of grafted textile were studied. The performance indexes of hydrostatic pressure, moisture permeability and bursting strength of the knitted cotton and terylene/cotton fabrics before and after grafting were compared and evaluated synthetically.

此后用微波低温等离子体引发纺织材料的接枝聚合反应，分别研究了棉针织物接枝AMPS和棉、涤棉混纺针织物接枝AMPS/NIPA二元单体，使智能凝胶以接枝的方式添加到纺织材料上；详细探讨了微波低温等离子体处理功率和时间、总单体浓度、AMPS单体浓度、交联剂浓度及聚合反应温度和时间等因素对增重率的影响，通过正交设计、方差分析及数理统计对各影响因子进行分析，确定了微波低温等离子体引发接枝聚合的最佳工艺条件；对接枝纺织材料的失水-吸水动力学、温度敏感性、pH敏感性等进行了研究；对接枝前后棉、涤棉混纺针织物的静水压、透湿性和顶破强力等服用性能指标进行了对比和综合评价。

In this branch of civil engineering, engineers build pipelines and related facilities which transport liquids, gases, or solids ranging from coal slurries and semiliquid wastes, to water, oil, and various types of highly combustible and noncombustible gases.

工程师们进行管线设计，并估计管线项目对所跨区域的经济环境影响，确定各种要用的材料-钢材，混凝土，塑料等，确定各种材料组合方法即安装技术，制定测试管线强度的方法，制定保持和控制被运送材料的合理流速和合适的压力。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！