查询词典 SN

Through the substantiating experiment, the SN ratio of new process and quality characteristic of its product have got obvious improved.

经验证试验确认，其SN比及品质特性均有明显改进。

Based on the detailed study of seismic tomography image in South China, and according to the geotectonic environment and shape and heat of asthenosphere upwelling, we divided the structure of lithosphereasthenosphere at the Mesozoic upper mantle of Eastern China into three types.(1)Continental platform area (North China platform and Yangtze platform): asthenosphere upwelled along paleorift; over the plume head, the granitic rocks of crust and mantle mixed and correspondingly, Au, Cu, Mo, PbZn, etc. mineralizationconcentrated regions were formed; and at the steep contact belt of asthenosphere and the thick area of lithosphere, mediatebasic complex was formed.(2)Central area of fold zone: asthenosphere was "recumbent" at suitable depth, with adequate heat and in a great extent; by heat conduction, the interior of partial crust remelted, and the crustsource granitic rocks, and correspondingly, W, Sn and rare elements mineralizationconcentrated regions were formed.

在深入研究华南地震层析成像的基础上，按照大地构造环境和软流圈上涌形状和热度，将中国东部中生代上地幔中岩石圈软流圈构造划分为3类：(1)陆台区，软流圈沿古裂陷上涌，其柱头上方形成幔壳混熔花岗质岩及相应Au、Cu、Mo、PbZn等矿集区，并于软流圈与岩石圈厚区之陡接触带形成中基性杂岩及相应Fe矿集区；(2)褶皱带中心区，软流圈在适当深度、热量充足、较大范围内&平卧&，因热传导而致使地壳内物质部分重熔，形成壳源型花岗质岩及相应的W、Sn、稀有元素矿集区；(3)褶皱带边缘区(大兴安岭南部及华南南缘)，在软流圈上涌柱上方形成幔源或幔壳混熔的花岗质岩，相应为Cu、Au、PbZn、Mo、Ag矿集区。

When the concentrations of tetrabutyl ammonium bromide and KI in solution were 5.0×10^(-4) mol/L and 3.0×10^(-3)mol/L at pH 3.0, Bi(superscript 3+) could be quantitatively separated from Mo, Ga(superscript 3+), Co(superscript 2+), Mn(superscript 2+), Zn(superscript 2+), Rh(superscript 3+), Al(superscript 3+), Cr, V, Ni(superscript 2+), Sn, W and Fe(superscript 2+).

当溶液中溴化四丁基铵和碘化钾的浓度分别为5.0×10^(-4) mol/L和3.0×10^(-3)mol/L和在PH3时，Bi(上标 3+)可与Mo，Ga(上标 3+)，Co(上标 2+)，Mn(上标 2+)，Zn(上标 2+)，Rh(上标 3+)，Al(上标 3+)，Cr，V，Ni(上标 2+)，Sn，W和Fe(上标 2+)定量分离。

On the other hand, Sn dendrites were formed at the interface of piled Zn powders/solution, forming a bridge thereat like agraffes.

指出为了获得成分均匀、结构致密的机械镀锌层，应当强化先导金属Sn的第一种沉积方式，抑制第二种沉积方式。

Recent developments in the research on the geology and geochemistry of the newly-discovered clayey breccias at the lop of the Xiaochaka Formation in the Juhuashan, Xiaochaka and Shishuihe areas, Qiangtang Basin, northern Tibet have disclosed that mineral compositions, textures and structures, occurrences and sectional architectures of the clayey breccias agree well with those of the paleo-weathering crust in these areas. Compared with the bedrocks, the paleo-weathering crust is characterized by the leaching out of CaO and CO2, and relative enrichment of SiO2, Al2 O3, Fe2O3, K2O, Na2O, MnO and P2O5. The clayey weathered residues in the paleo-weathering crust are characterized by marked enrichment of REEs, much higher contents of LREEs than those of HREEs, markedly positive Ce anomalies and negative Eu anomalies, and a noticeable increase in other element contents besides Mo, Sn and U from the clayey weathered residues.

对最近在藏北羌塘盆地菊花山、肖茶卡、石水河等地区新发现的肖茶卡组顶部的粘土质角砾岩的地质、地球化学特征研究表明：其岩石矿物成分、结构构造、角砾层产状及剖面演化序列等与古风化壳的形成及其特征较为一致；相对于基岩，古风化壳的主量元素表现为CaO、CO2的淋失和SiO2、Al2O3、Fe2O3、K2O、Na2O、MnO、P2O5等不同程度的相对富集；古风化壳中的粘土质风化残积层的稀土元素具有明显的富集，表现为LREE含量远大于HREE的特征，存在明显的Ce的正异常以及Eu的负异常；微量元素除Mo、Sn和U外，粘土质风化残积层的其余元素含量均有明显的增加。

Large amount of geological material was studied with statistics and geomechanics method,and the distribution law of factures in Cuijiagou mine has been found out:the main fracture s are along NNE and SN directions,other small fractures are controlled by the main fracture s.

利用统计分析、相关因素、地质力学分析方法对崔家沟井生产中积累的大量实际地质资料进行分析研究，找出了崔家沟井田范围内断层发育展布的规律，即近SN向及NNE向断层是本区的主干断层，共它小断层为其派生产物，小断层的展布受主干断层的控制。

Trace quantities of metals will be present in both the elemental and compound form (As, Cd, Cr, Cu, Pb, Mn, Hg, Ni, Sn, Zn). Trace quantities of a number of compounds with potential health impacts may be emitted, with dioxins and furans of particular interest .

重金属既可以单体形式存在，又可以化合物形式存在(As， Cd， Cr， Cu， Pb， Mn， Hg， Ni， Sn， Zn)，有些微量成分对人有潜在伤害，尤其以二噁英和呋喃最为人关注。

When demagnetization is controlled by nucleation, the effective demagnetization factor in coercivity model will be reduced with addition of Sn. But, in the same time, harmness of imperfects on surface of grain to coercivity will be increased.

在形核控制情形下，掺杂Sn能明显减小矫顽力表达式中的有效退磁因子N〓，但也使晶粒表面缺陷项对矫顽力的危害增大。

The influence of minor Bi additions on the interfacial morphology between Sn-Zn-xBi (x=0, 1, 3) solders and a Cu layer after reflowing were investigated by microstructural observations.

本文通过微观组织观察系统地研究了微量Bi组元的添加对Sn-Zn-xBi(x=0， 1， 3)系焊料合金与Cu基板间回流焊接界面形貌的影响。

Sn-3Ag-XCu(X=0.0~0.9) solders were reflowed on two copper pads, between/which 2-3VDC voltage was employed to investigate the electrochemical migration in deionized water.

Sn-3Ag-XCu(X=0.0~0.9)回焊於两铜垫上，完全浸泡於去离子水中做为阴阳两极，两极间施以2V~3V直流偏压，研究其电化学迁移现象。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失