镁

This paper studies the crank press on with magnesium alloy casing of the sheet metal stamping die design phones and technology system, studied blank temperature, mold temperature, lubrication conditions, and other factors of the magnesium alloy casing phone Stamping quality.

本文研究了在曲柄压力机上用镁合金板材冲压手机外壳的模具设计和工艺制度，研究了坯料温度、模具温度、润滑条件等工艺因素对镁合金手机外壳冲压质量的影响。

This article pays more attention to research how to design punching moulds and optimize techniques during punching case shells of mobile telephone with magnesium alloy in the crank machine press.

本文研究了在曲柄压力机上用镁合金板材冲压手机外壳的模具设计和工艺制度，研究了坯料温度，模具温度，润滑条件等工艺因素对镁合金手机外壳冲压质量的影响。

Containing or relating to a group of dark-colored minerals, composed chiefly of magnesium and iron, that occur in igneous rocks.

铁镁质的含有或与一组深色矿物有关的，主要由镁和铁组成，出现在火成岩中的

The atmospheric corrosion of MB8 magnesium alloy deposited with NH4Cl and in the presence of SO2(25℃and 85%±5% RH) was studied by gravimetry, focus ion beam, Fourier transform infrared spectroscope and X-ray diffraction.

目的 通过研究NH4Cl和SO2对MB8镁合金大气腐蚀行为的影响，揭示大气环境污染因素对MB8镁合金腐蚀的影响规律。

The atmospheric corrosion of MB8 magnesium alloy deposited with NH4Cl and in the presence of SO2(25 ℃and 85 %±5 % RH) was studied by gravi metry,focus ion beam,Fourier transform infrared spectroscope and X-ray diffraction.

目的通过研究 NH4Cl 和SO2对MB8镁合金大气腐蚀行为的影响，揭示大气环境污染因素对MB8镁合金腐蚀的影响规律。

The SiO2 content of the dike swarms varies from 50.22% to 61.10% and they are basic-intermediate rock series, mainly basic. The Al2O3 content is generally higher than 15% and they are high aluminum basaltic rocks. The lower magnesium index (Mg#=42.77~62.28) and TiO2 content (0.97~2.41%) illuminate that they suffered magnesium-iron minerals' fractional crystallization and that they did not crystallize from original basaltic magma. The values of Na2O/K2O are all above 1, indicating lower K character. Chemically discriminated, these dike swarms are sub-alkaline rock series.

岩墙群的SiO2含量为50.22~61.10%，属于基性和中基性岩类，以基性为主；它们的A12O3含量普遍高于15%，属高铝玄武岩类；具有较低的镁指数（Mg#=42.77~62.28）及TiO2含量（0.97~2.41%），说明它们经历了镁铁质矿物的结晶分异作用，也指示它们不是由原始玄武岩浆结晶；Na2O/K2O都大于1，显示出低钾的特点；岩石化学判别，岩墙群岩石属亚碱性系列。

On the basis of a study and elaboration of data, some important conclusions are presented:(1) ruby deposits in marbles occur in the plutonic metamorphic zones of orogens where deep fault structure is developed;(2) ruby-bearing rocks are calcic crystalline marbles, rather than magnesian marbles;(3) amphiboles in ruby-bearing rocks are not tremolites, but silica-poor, alumina-rich and chrome-bearing calcic amphiboles, such as chrome-bearing magnesio-sadanagaites; and (4) the deposits are genetically of thermodynamical metamorphism type, rather than of pneumatolito-hydrothermal type or skarn type.

目前，对于与此类型矿床找矿相关的若干成因问题的认识，还相当模糊，主要表现在以下几方面：①对此类型矿床的产出构造背景认识不清；②认为含矿岩石为镁质大理岩或镁质夕卡岩；③认为含矿岩石中与红宝石共生的角闪石为透闪石；④认为此类矿床的成因类型为&气成一热液型&或&夕卡岩型&。本文在实际研究(王礼胜，1996)和文献资料整理的基础上，分别对这些问题给予了澄

By sutdy and gathering information, some important conclusions are presented:(1) Ruby deposits of marble type were located in the plutonic metamorphic zones of orogene where deep-seated fault structure is developed;(2) Genesis of the deposit belongs to the type of thermal-dynamic metamorphism;(3) Ruby-bearing rocks are calcic crystalline marbles, not magnesian marbles;(4) Amphiboles in ruby-bearing rocks arenot tremolites, but silica-poor alumina-rich and chrome-bearing calcic amphiboles.

目前，对于此类型矿床找矿相关的若干重要问题的认识，还相当模糊，主要表现在以下几方面：（1）对此类型矿床的产出构造背景认识不清；（2）认为此类矿床的成因类型为&气成一热液型&或&矽卡岩型&；（3）认为含矿岩石为镁质大理岩或镁质矽卡岩；（4）认为含矿岩石中的角门石为透门石。本文通过实际研究①和相关文献资料的搜集整理，分别对这些

ABSTRACT:Objective To determine the effects of atracurium pretreatment with magnesium on speed of onset, duration, and recovery of neuromuscular block.

目的 观察预注硫酸镁后阿曲库铵神经肌肉阻滞效应的变化，评价镁离子对阿曲库铵神经肌肉阻滞时间的影响。

Re-sults:it was shown that Nano MgO had excellent germicidal efficacy to the Escherichia coli and Staphylococcus aureus.To such spore as Bacillus subtilis var.niger spore,Nano MgO also produced good germicidal effect.It was proposed that abrasiveness,alka-linity,electrostatic attraction,and oxidizing power of nano MgO all combined to promote these biocidal properties.

结果： ①纳米氧化镁能有效杀灭大肠杆菌，对枯草杆菌黑色变种芽孢也有显著的杀灭效果；②纳米氧化镁对金黄色葡萄球菌和枯草杆菌黑色变种芽孢有很好的抑菌作用；③纳米氧化物的磨蚀性、碱性、氧化性以及对微生物的静电吸附使它具有抑菌和杀菌作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。