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- It is said that the materials of iron needles are special. 据说这种铁针的材料都是有讲究的。
- Point sources with different energies were used to irradiate target materials of iron and lead,with simulated calculation made by Monte Carlo code. 利用不同能量的各项同性点源对铁和铅两种靶物质进行照射,使用蒙特卡罗程序实现模拟计算。
- Baoshan iron and steel manufacturers agreed last year to the main raw materials of iron ore 85-95% record prices, so that Beijing's quite annoyed. 宝钢去年同意了钢铁制造主要原材料铁矿石85%25至95%25创纪录价格涨幅,让北京方面颇为恼火。
- Bend a piece of iron into a horseshoe. 把一块铁弯曲成马蹄形。
- He is a man of iron self-control. 他是一个有极强的自制能力的人。
- Certain facts have become known about the materials of the moon. 关于月球的构成物质的某些事实已为人所知。
- Environmental catalytic material of iron nitride nanoparticle was synthesized by Benzene-thermal method. 采用苯热法合成环境催化材料纳米氮化铁。
- Coal, oil and minerals are the raw materials of industry. 煤、 石油和矿产品都是工业原料。
- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。
- PTFE matrix composites were fabricated using mixing nano sized powder process and vaporizing impregnant process. 采用溶剂蒸发法和固体纳米粉末混合法制备两种工艺制备了PTFE复合材料。
- There are mainly two methods to prepare nano sized titania, uch as vapor phase process and liquid phase process. 纳米钛白的制备方法大致可分为两类,即气相法和液相法,而液相法是研究的重点和热点。
- The nature of iron differs greatly from that of wood. 铁与木的性质有很大区别。
- Using nitrates and etylene diamine tetra acetic acid(EDTA) as raw materials, Nano size La 0.8 Sr 0.2 FeO 3 powder was synthesized by EDTA complexing Sol Gel method at lower temperature. 以金属硝酸盐和乙二胺四乙酸 (EDTA)为原料 ;用EDTA络合溶胶 凝胶法合成了La0 .;8Sr0
- The period in which man learnt to make tools of iron is called the Iron Age. 人类学会用铁制造工具的时代称为铁器时代。
- Insulating materials of this type are in two forms. 这类保温材料有两种形式。
- The results show that the hardness of composites fabricated with vaporizing impregnant process is much higher than that fabricated with mixing nano sized powder process. 结果表明在填料含量相同时,溶剂蒸发法制备的PTFE复合材料的硬度显著高于固体纳米粉末混合法制备的PTFE复合材料的硬度;
- The type,reaction mechanism and application of nano sized semiconductor photocatalyst are reviewed.The improvement of photocatalyst is also discussed in brief. 对半导体光催化剂的类型、作用机理、应用及其性能改进作了综合评述。
- Popular teaching materials of linear algebra II. 通俗线性代数讲义2。
- Compared with pure PTT, the thermal stability, crystallization and tensile performance of the PTT/MMT composites are improved due to the introduction of nano sized DK2 MMT. 与纯PTT相比,由于MMT在PTT基体中达到纳米尺寸分散,PTT/MMT复合材料的热稳定性能、结晶性能和拉伸性能都得到了明显提高。
- Plenty of iron ore is imported from Australia. 许多铁矿石是由澳大利亚进口的。