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With the method of orthogonal experiment, nine kinds of Mg-Nd-Gd-Zn-Zr magnesium alloys with different composition were prepared by sand casting.

中文摘要：采用正交试验方法，通过砂型铸造制备9种不同成分的Mg-Nd-Gd-Zn-Zr系镁合金。

Chemical analysis showed that the fresh basalts and corestones slightly changed in composition except that variations in Fe(superscript 2+) to Fe(superscript 3+) are most noticeable. In the course of corestones changing to saprolite elements of Si, Ca, Na and Mg, the ratio of SiO2/Al2O3 decreased gradually, while the elements of Fe, Al and the values of LOI and CIA significantly increased.

化学全分析结果表明新鲜玄武岩与核心石在除Fe外，其它组分无明显的改变；核心石在转变为腐岩过程中Si、Ca、Na、Mg等元素逐渐流失，Fe、Al等逐渐富集，同时烧失量LOI和化学蚀变指数CIA显著增加，硅铝比逐渐减少。

The Al-Cu-Mg-Ag alloys with different scandium contents were prepared by ingot metallurgy technology.

采用铸锭冶金工艺，制备不同钪含量的Al-Cu-Mg-Ag合金。

In 3.5% NaCl solution, the stress corrosion cracking properties of a new Al-Mg-Cu alloy containing scandium were examined. The composition and the micro-morphology of the crack tip were analyzed.

摘 要：对3.5%NaCl溶液中新型含钪Al-Mg-Cu合金的应力腐蚀开裂宏观性能进行测试，并对裂纹尖端的成分与微观形貌进行分析。

The microstructure, mechanical properties and hardness of Mg-2% Mn-x%Y alloy were analyzed by optical microscope, mechanical apparatus and sclerometer.

用光学显微镜、力学万能试验机和显微硬度仪等分析了Mg-2% Mn-x% Y合金的显微组织和力学性能。

Moreover, self-diffusion coefficient of interlayer water is higher for Na-montmorillonite than that for Na/Mg-montmorillonite at the same water content.

Na／Mg-蒙脱石比相同水含量下的Na-蒙脱石层间水的自扩散系数小。

The results showed that RSAP used two primers of 18 nucleotides in which starting at the 3' end of each primer were restriction site sequences (4-6 bases),followed 12-14 bases of arbitary sequence, the differences between two primers were restriction sites and filler sequence; PCR am-plification was run for the first 5 cycles with an annealing temperature of 35℃, followed by 35 cycles with an annealing temperature of 48℃; the PCR reaction of 25 μL included 20ng DNA templates, 2.5mmol/L of Mg(superscript 2+), 0.2 mmol/L of dNTP, 1.5U of Taq DNA polymerase, 600nmol/L of each primers. RSAP is a new maker technique with simplicity, moderate throughput ratio and reliability. RSAP is of good reprodicibity and broad application.

结果显示，RSAP技术的引物为2条长度均为18bp的引物，引物的3'端为4~6个碱基的限制性酶切位点序列，接着是12~14个碱基的随机序列，2条引物的限制性位点和随机序列不同：PCR扩增的前5个循环采用35℃的退火温度，随后的35个循环采用48℃的退火温度；在25μL反应体系中，模板DNA用量为20ng，Mg(上标 2+)浓度为2.5mmol/L dNIPs浓度为0.2 mmol/L，Tap DNA聚合酶用碳为1.5U，2条引物浓度均为600mmol/L；RSAP技术重复性好，适用性广泛，是一种操作简便、产率中等、稳定可靠的DNA标记技术。

Therefore, common reed cultivation is estimated to sequestrate 57.3 and 33.8 Mg CO2 ha-1 in fallow paddy and in river strand, respectively, and the mowed shoot can supply bioenergy production.

在休耕水田与河岸泥滩栽培芦苇，估计每年分别能固定57.3 与33.8 Mg CO2 ha-1，收获之草秆可做为生质能源原料。

We have developed a sere of diagnostic protocol for this rare type of laryngeal MG, and discussed the clinical implication of our data.

目前我们已为此类罕见的喉型MG建立了系列性的诊断草案，并讨论了我们数据的潜在临床意义。

The results showed that the P sorption maxima of the soils were in the range of 89 to 1250 mg P kg-1 and were decreased in the order of TTs＞Pc＞Ca＞Eh＞Cf with decreasing amounts of sesquioxide in soils.

结果显示，供试土壤最大吸附量范围从89 到 1250 mg P kg-1，由大到小依序分别为淡水系，平镇系，淇武兰系，二林系，将军系，其游离氧化铁铝含量越高，土壤之磷的最大吸附量也就越大。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。