矿

Mining companies received incentives such as 30 years without new taxes and duty-free imports of earth-moving equipment.

给予矿采业的奖励措施包括三十年免征新税与免税进口矿业开采设备等等。

Mining companies received incentives such as 30 years without new taxes duty-free imports of earth-moving equipment.

给予矿采业的奖励措施包括 www 。ddd tt。 com 三十年免征新税与免税进口矿业开采设备等等。

Compared with rare-earths and their alloys, the perovskite-type manganese oxides exhibit higher chemical stability, higher resistivity that favors a lower value of eddy current loss and lower cost, and would be more suitable candidates for magnetic refrigerants at high temperature, especially the potential for application near room temperature.

与稀土以及稀土-过渡金属的合金比较，钙钛矿锰氧化物具有较高的电阻率有利于降低涡流损耗，以及较低的价格，因而这类材料有可能是高温，特别是室温磁制冷的较好候选者。

General method and other new technologies of ore smelting electric arc furnace starting-up are introduced.

介绍了矿热炉开炉的一般方法和两种开炉新工艺。

Drift electron mobility, the Hall factor and Hall mobility in GaN are calculated according to Mattiessen's rule as a function of temperature for carrier concentrations with the compensation ration as a parameter on the basis of taking into account the individual average scattering momentum relaxation time of four scattering mechanisms, namely, ionized impurity scattering, polar mode optical scattering, acoustic piezoelectric scattering and acoustic phonon deformation potential scattering which have an effect on electron mobility of GaN.

考虑了对纤锌矿型氮化镓低场电子输运影响最为显著的4种散射机制－电离杂质散射，极化光学波散射，声学波压电散射和声学声子形变势散射的单个平均动量驰豫时间，采用Mattiessen's rule计算了不同补偿率以及不同载流子浓度条件下，氮化镓电子漂移迁移率，霍耳因子以及霍耳迁移率随温度的变化。

Taking Au-Ag intergrowth compounds as an example this paper has reached the following conclusions. In the Au-Ag compounds of differem types of gold deposits as sequemially replaces Au, making up a continuous isomorphous series. The content of Au and Ag in native gold forms a regular pattern. The development of native gold and that of electrum have something to do with different types of gold deposits respectively. Abundances of trace elements in Au-Ag minerals are controlled by geological settings and geochemical fields. The above study provides new geological information and a new method for the study and exploration of gold deposits.

本文以金银互化物的研究为例，讨论了在不同在因类型矿床中，金－银构成一个连续的类质同象系列，且变化是有规律可循，其微量元素的含量与该矿床成矿地质环境和相应的地球化学场有关，从而为找矿提供了新的地质信息，拓宽了寻找同类伴生元素矿床或发现新类型矿床的途径。

Located in the eastern side of the large-scale silver deposit in Yindonggou, the Yindongyan electrum deposit is nearly the same as the silverr deposit in metallogenetic geological background and ore-controlling structures.

摘要银洞岩银金矿床位于竹山银洞沟大型银矿东侧，且二者在成矿地质背景、矿构造条件等诸方面极为相似。

Mineral products law edits sprint accrual tilts more the place occupies daily of the first finance and economics on September 11 message:?996 year " law of mineral products resource " after revising 10 one's remaining years, new round mine law repairs emend " put into high gear ".

矿产法修订冲刺收益将更多倾斜地方据第一财经日报9月11日消息：在1996年《矿产资源法》修改10余年后，新一轮的矿法修订正"开足马力"。

I went to a closed Emerald mine in Australia.

我去一个封闭的祖母绿矿在澳大利亚。

This alternation feature is commonly related to emplacement of Cshaped rolls.

蚀变的特征一般同C形的卷型矿化有关。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。