用特异化学标记的短链DNA取代了混有稀土的复合物,每一个链有不同顺序的基因编码。
In place of combinations of rare-earth compounds, its unique chemical markers are short stretches of DNA, each with different sequence of genetic code.
为了解决这个问题,研究者们正在希望用含铈的稀土[钼系]元素合金来作为替代品。
To solve the problem, researchers are hoping to replace them with "mischmetal" alloys.
矿工们挖去表层土,然后把这些闪着点点金光的粘土铲进一个灰坑内,用酸来提取出稀土矿。
Miners scrape off the topsoil and shovel golden-flecked clay into dirt pits, using acids to extract the rare earths.
磁选设备锰矿,氧化锰矿,铁砂矿,高岭土,稀土矿等都可以用磁选机来选别。
Magnetic separation equipment of manganese ore, manganese oxide, iron ore, kaolin, rare earth ore magnetic separator can be used to separate.
然而,为了充分利用昂贵的稀土永磁体,在直流力矩电动机的传统磁结构中,直接用稀土永磁体取代铝镍钴磁钢是不适宜的。
However, to take full advantage of the expensive rare earth magnets, simply replacing the alnico magnets by rare earth ones in traditional magnetic structures of dc torque motors is not adequate.
用稀土金属离子通过形成配位结合来固着丝胶,制备了不同增重率的丝纤维,研究了增重丝纤维结构变化。
The structure changes of silk fiber with different weight gain, by using sericin fixing agent containing rare earth metal ion, were studied in this paper.
用乙酸和正丁醇为原料,以不溶性杂多酸稀土盐为催化剂合成了乙酸丁酯。
Catalyzed by insoluble rare earth salts of heteropoly acid, butyl acetate have been synthesized from butanol and acetic acid.
结果表明用原位合成法,可以将难溶性稀土羧酸类配合物有效地掺杂到溶胶基质中。
The result indicates that rare earth carboxylates with poor solubility can be doped into sol matrix in situ.
用分光光度法测定鸡肉组织中稀土的残留量。
It gives the method that measures remnant rare earth in chicken by spectrophotom.
用稀土超磁致伸缩材料制成的超磁致震源与其他震源相比,具有许多优异的特性。
The huge magnet-os trictive vibration source made up of rare earth giant magnetostrictive material is superior to other vibration sources and has many outstanding characteristics .
用卢瑟福背散射谱分析了稀土离子在多孔硅薄膜中的分布情况。
The distribution of rare earth ions embedded into porous silicon films was observed by Rutherford backscattering spectrometry.
用直流共溅射方法制备了富稀土-过渡族金属非晶态合金薄膜。
The rich rare earth transition metal amorphous films were prepared by DC double target co sputtering method.
介绍了用内耗方法研究钢中稀土合金化取得的进展;
The progress of study on the alloying of rare earth in steel by internal friction was introduced.
同时展望了灯用稀土荧光粉的发展前景。
Moreover, it gives the outlook of rare earth phosphor used for lamp.
氟碳铈矿纯碱焙烧低酸浸出,在还原条件下直接用盐酸浸出制取工业氯化稀土。
The reductive extraction method of bastnasite baked by sodium carbonate and low acidity HCI leaching for making rare earth chloride is reported.
并且探讨了用这种纤维富集稀土离子矿浸出液的可能性。
It has also been inquired into the possibility of concentration of the dilute extracted solution of ionic rare earth ore.
研究用碳酸氢铵沉淀法分离稀土的各种条件和最优工艺的选择。
The conditions and the selection of the optimization process that rare earths are extracted by the ammonium hydrocarbonate precipitation are studied.
用熔体发泡法制备出了高强度稀土泡沫铝合金。
High strength rare earth foam aluminium alloy is prepared in our laboratory by smelting bubble system.
用稀土变质处理中锰白口铁可改变碳化物形貌及分布且提高其韧性。
The results show that the modification of white cast iron by RE can change the carbide morphology and distribution and increase the toughness.
报道了用稀土催化体系制备的可溶性聚乙炔的拉曼光谱。
Resonance Raman spectra have been reported firstly for soluble polyacetylene prepared by rare-earth catalyst.
探讨了用锌、稀土元素的同时配位滴定法测定锌含量的方法。
Discusses the measurement of the content of zinc by using simultaneous coordinate titration of zinc and rare-earth element.
用俄歇谱及分子束技术就地与非就地研究了蒸发稀土金属镧薄膜的表面特性。
The surface characteristics of evaporated rare-earth metal la thin film were studied by ex-situ and in-situ AES and molecular beam technique.
介绍了卫星飞轮用稀土永磁电机的正弦波和方波两种驱动的工作原理及其控制特点。
The working principle and control characteristics of rare earth permanent magnet (REPM) motor driven by sinusoidal and trapezoidal in satellite flywheel were introduced in this paper.
应用新型的稀土处理钢用保护渣没有发生拉漏事故,并提高了铸坯表面质量。
Break out accidents have never occurred and surface quality of slabs has been improved since introduction of this new type of mould flux into continuously casting the rare earth treated steel.
为了探讨稀土元素对家禽生长发育的影响,用稀土作添加剂对崇仁麻鸡进行饲养实验研究。
In order to study the effects of rare-earth elements on the growth of domestic fowls, Chongren Ma chickens have been raised with rare-earth additives.
用旋转弯曲疲劳试验机试验了不同稀土含量对几种结构钢疲劳性能的作用。
The effect of RE on fatigue behaviours of structural steels was investigated with a rotating bending fatigue machine.
用真空电孤熔炼合成了稀土基AB2型合金。
Rare earth based AB2 type alloy has been synthesized by arc melting constituent elemente.
用金相显微镜及X射线衍射仪对形变含稀土低碳钢热浸镀铝的镀层微观组织进行了分析,并探讨了其形成机制。
The microstructure of hot-dip aluminum coat of deformed low-carbon steel containing RE has been analyzed by metallography microscopy and XRD, and the forming mechanism has also been discussed.
用金相显微镜及X射线衍射仪对形变含稀土低碳钢热浸镀铝的镀层微观组织进行了分析,并探讨了其形成机制。
The microstructure of hot-dip aluminum coat of deformed low-carbon steel containing RE has been analyzed by metallography microscopy and XRD, and the forming mechanism has also been discussed.
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