石墨的

A recurve bow coated in fibreglass has become standard, and arrows made of aluminium and carbon graphite can travel more than 240km/h

覆盖着玻璃纤维，向内凹进的弓已经成为了标准用具，用铝和石墨制成的箭时速可高达240公里。

The same basic design principle is used in today's Olympic archery competitions, but the recurve has been refined, with fiberglass, carbon graphite and aluminum now being the materials of choice.

但反向弯曲得到更进一步的改进，可以选用的材料有玻璃纤维，碳素石墨和铅。

Single wall carbon nanotubes are either metallic or semiconducting, depending on how the graphite sheet is rolled up.

由石墨层卷曲而成的碳纳米管，因其不同的卷曲方式，既可以是金属，也可以是半导体。

In this paper the content of fourteen microelements in astragulus root of northeast China was determined by flame atomic absorption and graphite oven absorption spectrophotometry, compared with four pretreatment slaking methods and gained good determination methods for some elements.

本文以火焰原子吸收法和石墨炉原子吸收法测定了东北黄芪中 14种微量元素的含量，并对 4种预处理消化方法进行了比较，选择出对某种元素较好的测定方法。

The corrosion properties of common cast iron materi als in static (flowing velocity is about 0.1 m/s)and flowing seawater were teste d,and effects of graphite morphology,matrix microstructure and low alloying trea tment on corrosion properties of cast irons were analyzed.

对常用铸铁材料在实海和流动海水条件下的腐蚀性能进行了测试，分析了铸铁中不同石墨形态、基体组织、低合金化对铸铁腐蚀性能的影响机理。

Based on analysis of admixtures' shape, mechano-electric effect of cement pastes admixing with carbon fiber, black lead, steel fiber and two kinds of nano-TiO2 is studied.

结合掺和料的形态分析，研究了碳纤维、石墨、钢纤维以及两种纳米氧化钛复合水泥基材料的力电耦合效应。

It has been found that carburetting with graphite can efficiently prevent the surface crack of cast iron.

研究还证明，用石墨增碳可以有效地改善激光熔化区和合金化区的组织和性能，并且有效地防止裂纹的产生。

In this thesis,the expanded graphite was prepared by filtrating insert and using different methods.

本文筛选不同的插入剂，采用不同的试验方法制备低温可膨胀石墨。

The results show that the mixture of graphite, aluminum powder and RJ-2 fluxing agent has the best refining effect, the grain size of AZ91D decreases from 446 pm to 130μm;tensile strength is increased by 37% and Brinell hardness is increased by 17.5%.

实验表明，石墨、铭粉、RJ-2熔剂三种混合后加入的细化效果最好，晶粒尺寸由未变质前的446μm降至130μm；抗拉强度提高37%，布氏硬度提高17.5%。

Graphite mold has been widely used in hot pressing of impregnated diamond hit manufacturing owing to its excellent performance.

石墨模具以其优良的性能被广泛应用于热压孕镶金刚石钻头的制造。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。