查询词典 columbite

We are one of the biggest end user of tantalite and columbite . We need the ores at the long-term.

我们是中国最大的使用钽铌矿公司之一，我们长期需要钽矿和铌矿。

The columbite precursor method was used to synthesize 〓 system ceramics across the morphotropic phase boundary .

采用两步法合成了准同型相界附近的〓系统陶瓷，对其结构和性能进行了详。。。

A two-step columbite method was utilized for preparation of PMNT solid solution with single-phase perovskite.

本工作采用二步合成法避免了烧录石相形成，获得了纯钙钛矿相的PMNT粉体。

The results indicate that the Y5V dielectric powder prepared by MSS not only are homogeneous, excellent and intensive, but also is active, can be sintered 900~920℃and the dielectric properties are better than the columbite precursor method , can be applied with pure silver paste, the production cost of MLCC is able to reduced.

结果表明：熔盐法制备的Y5V电子瓷料粉体不仅颗粒均匀、形貌好、易分散，而且活性高，使得多层陶瓷电容器的烧结温度可以降低到900~920℃，其介电性能要优于传统的二步合成法制备的粉体，十分有利于采用全银内浆，大大降低MLCC的生产成本。

Tin, columbite, lead and zinc were also exported, along with gold, and prior to the discovery of oil, the export of solid minerals served as a major foreign exchange earner; at one time, Nigeria was the world's largest exporter of columbite.

在发现石油之前，除了黄金，尼日利亚出口锡、钶铁矿、铅和锌，这些固体矿产的出口为尼日利亚带来了一大笔外汇收入。尼一度曾是世界上最大的钶铁矿出口国。

The country is rich in uranium, gold, tin and columbite, coal, kaolin, barites, bauxite, zinc, limestone, gypsum etc.

铀，金，锡，钶铁矿和煤，高岭土，重晶石，矾土，锌，石灰石，石膏等在尼日利亚都有丰富的含量。

Relaxor ferroelectric(1-x) PbMg_(1/3Nb_(2/3)O_3-x PbTiO_3 ceramics near the morphotropic phase boundary were prepared by the columbite precursor method.

采用铌铁矿预产物合成法制备了组成在相界附近的(1-x)Pb(Mg1/3Nb2/3)O3-x PbTiO3弛豫铁电陶瓷。

There is high tantalite grade for certain large scale granite-pegmatite pattern tantalite-columbite mine in our country.

我国某大型花岗伟晶岩型铌钽矿含钽品位高居我国钽铌矿山之首。

Experiment is done on the acid hydrolysis of titanium-columbite-tantalite ore difficult to decompose.

对难分解的钛钽铌矿的酸分解工艺进行了试验研究。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。