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Based on this phenomenon, a sensitive catalytic photometric method for the determination of ruthenium is proposed.

此文研究了褪色反应的最佳条件，其Ru的检出限为5μg·L-1，钌在5～32μg·L-1范围内符合比耳定律。

The iron nanoparticles in inner core have good magnetism and targeting heating effect. The temperature can go up to 52 ℃ in the case that 0.1 g carrier (carbon-coated iron nanoparticles) is injected in a local point of pig's liver,while the temperature can go up to 42℃ in the case that pig's liver uniformly containing carrier of 0.4 wt.% and 45℃ in the case that pig's liver uniformly containing carrier of 0.6 wt.%. Carbon-coated iron nanoparticles also has good antioxidation and stability by an X-rays diffraction structural analysis.

铁纳米粒子磁场强，靶向效果好，有较佳的磁靶向发热效应，在动物病灶局部放置0.1 g碳包铁纳米粒子将能使发热温度平均升到52℃；而将碳包铁纳米粒子均匀与猪肝混合也有明显的产热效果：含量0.4%碳包铁纳米粒子的一组猪肝能将温度升到42℃，而含量0.6%碳包铁纳米粒子的一组猪肝能将温度升到48℃。X射线衍射表明借助于碳的包裹，碳包铁纳米粒子有好的抗氧化性和稳定性。

Theorem 12. Let G be a maximal planar graph.

定理12。设G是一个极大平面图。

A graph is planar if it can be embedded into the plane so that its edges meet only at their ends.

如果一个图G能够嵌入到平面内，使得边仅在端点处相交，则称G是可平面图。

The problem of deciding whether an arbitrary undirected planar graph $G$ is a Hamiltonian is one of six best important {bf NP}-complete problems.

判定一个任意的无向可平面图G是否是哈密顿图问题是六个重要的NP完全问题之一。

DSP provides an excellent planform for speech compression technology development. Telecommunication Standardization Sector of International Telecommunication Union proposed G.729A as a kind of high quality and low rate speech coding solution in 1996. TMS320C6711 is an advanced floating-point DSP, which is released by Texas Instrument.

数字信号处理器为语音压缩技术的发展提供了良好的实现平台。G.729A是国际电信联盟于1996年底推出的高质量低码率的语音压缩方案，TMS320C6711是TI 公司推出的高性能浮点数字信号处理器。

The experiment showed that the green algae in fresh water had a strong adsorption on plumbum,and the adsorptive efficiency would be 40% when pH was 4,the temperature reached 28℃ and the 2 g algae adsorbed the 20 mL liquor which contained Pb2+ of 100 mg/L.

结果表明，淡水中丝状绿藻对铅有较强的吸附能力，当pH值和温度以及包埋藻类的量控制在一定条件下，即pH值约为4，温度为28℃左右，按照2 g藻类处理20 mL质量浓度为100 mg/L Pb2+溶液原则包埋藻类，就可以使单位藻类吸附效率达到40%。

Tergitol or PEG (0.5 g) was added to 10 mL of a 20% solution of alkyl halide in phenylacetonitrile, and then this solution was added to 10 mL of 60% aqueous potassium hydroxide.

Tergitol或聚乙二醇（ 0.5 g ）项增加了10毫升的 20 ％的溶液中苯乙腈烷基卤化物，和那么这个解决办法是增加了10毫升的60 ％水氢氧化钾。

To examine the significance of heat shock protein 70 mRNA in ototoxicity resulted from gentamicin, twenty healthy albino guinea pigs (200~250 g) of either sex with a positive Prier reflex were divided into two groups randomly.

摘 要：为探讨热休克蛋白(heat shock protein， HSP) 70 mRNA在庆大霉素(gentamicin， GM)耳中毒中的意义，本实验选用耳廓反射灵敏的健康白色红目豚鼠(200~250 g) 20只，雌雄不拘，随机分成两组，每组10只。

The anodic peak current was found to be proportional to the concentration of pyridoxine hydrochloride from 0.01 to 1.03 mg/ml, with a detection limit of 1.34 g/ml.

研究表明，阳极峰电流与维生素B_6的浓度在0.010-1.03 mg/ml范围内存在线性关系，检测下限为1.34μg/ml。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐