锗的

A brittle gray crystalline element that is a semiconducting metalloid used in transistors; occurs in germanite and argyrodite.

一种易碎的灰色晶体元素，具半导体特性的非金属，用于晶体管中，存在于锗石和硫银锗矿中。

Introduced the geologic background of the Coal-Ge, and the distribution of Germanium in the coal seam.

介绍了胜利煤－锗矿床的地质背景，以及锗在矿层的分布情况。

The method takes amorphous silica as silicon source and by the steps of soaking, baking, Fe nano particles is implanted, amorphous silica implanted into Fe nano particles and Alpha germanium oxide are mixed and grinded, the obtained mixture is gas-solid treated by organic amine, so as to obtain the silicon germanium oxide composite nano line.

该方法是以无定型氧化硅作为硅源，通过浸泡、焙烧植入铁纳米粒子，再将植入铁纳米粒子的无定型氧化硅和α氧化锗混和研磨，通过有机胺的气-固相处理，最终获得硅锗氧化物复合纳米线。

Until this time, nearly all transistors had utilized germanium because it was easier to prepare in pure form.

到目前为止，由于较容易取得纯净的锗元素，几乎所有的晶体管皆是利用锗来制成的。

The invention relates to a preparation process for synthesizing polyethylene terephthalate 1, 3- terephthalate catalyst, which comprises adding titanic acid ester, germanium compounds and cobalt compound into liquid dispersed phase of organic solution, wherein the total weight concentration is 4-10%, and preparing the catalyst through mechanical stirring or ultrasonic wave mixed ligand for 10-60 minutes in 0-120 DEG C, wherein the adding content of titanic acid ester, germanium compounds and cobalt compound are respectively 200-500ppm, 50-300ppm and 100-400ppm of reaction monomer mass of terephthalic acid or dimethyl terephthalate.

本发明涉及一种合成聚对苯二甲酸1，3-丙二醇酯催化剂的制备方法，将钛酸酯、锗化合物和钴化合物加入到有机溶剂的液体分散相中，总重量浓度为4～10％，在0-120℃通过机械搅拌或超声波混配10-60min制得；钛酸酯、锗化合物和钴化合物加入量分别是对苯二甲酸或对苯二甲酸二甲酯反应单体质量的200-500ppm、50-300ppm、100-400ppm；用此催化剂制备PTT产品，酯化和缩聚反应时间相对于单独使用钛酸四丁酯缩短了30-60min，产品特性粘数0.70-1.05dL/g，色相b值在2-6之间，切片可用于加工新型合成纤维及工程塑料产品。

The rare disperse metal galium and germanium of Fankou Lead Zinc mine mainly exist in sphalerite in the form of isomorphism. How to recovery them is a key subject since Fankou Lead Zinc mine was set up.

凡口铅锌矿稀散金属镓锗主要是以类质同像形式存在于闪锌矿中，如何有效地综合回收镓锗是凡口矿建矿以来研究的主要课题之一。

Effect of host composition on upconversion and Raman spectra of Er~(3+)-doped oxyfluoride germanosilicate glasses was investigated, and upconversion mechanisms of Er~(3+) in oxyfluoride germanosilicate glasses were analyzed.

研究了基质玻璃成分对Er3+掺杂氧氟锗硅酸盐玻璃上转换光谱和Raman光谱的影响，分析了氧氟锗硅酸盐玻璃中Er3+的上转换发光机理。

From the results of solid-phase crystallization method, we found that a-Ge is transformed into poly-Ge at 500 ℃ for 1 hour annealing and then the grain size saturates.

从固相结晶法的结果，我们发现在经过500 ℃ 1小时的退火处理后，非晶锗会转变成多晶锗且晶粒尺寸会达到饱和，不再随退火时间的增加而增加尺寸。

In thesegermanates, framework are fOrmed by GeO5 trigonaI bipyramids or GeO6 octahedra,as we1l as GeO4 tetrahedra.

在这些锗酸盐结构中，骨架构成除了GeO4四面体外，还有GeO5三角双锥、GeO6八面体，这预示着锗酸盐分子筛可能具有更丰富的拓扑结构。

With the development of infrared technique,the aplication of Germaniumget more and more in optical systems,There are some difficulties for opticians to get large Ge material with small stress and good homogeneity and to meet the precise requirements of optical elements.

随着红外技术的发展，在其光学系统中，锗材料的应用日趋地多。大口径锗材料在应力、均匀性和作为光学零件要求的精度上，对加工者都有一定难度。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。