查询词典 Sr

Unit steradian, sr.

单位：球面度，sr。

The saturation of 10 mL 1 g/L PMCyP-MIBK is about 1 mg, and the stoichiometric proportion to Sr is 3∶1 in extraction.

实验测得10 mL 1 g/L PMCyP-MIBK对Sr的饱和萃取容量约为1 mg，萃合比为3∶1。

With the development of technology, it maybe possible to generate SR pulse with long interval in large storage ring by this kind of mechanical chopper, but it is impossible in a small ring.

随着技术的发展，采用Chopper有可能在周长很大储存环上产生严格的长时间间隔的SR脉冲，但是对于周长小的储存环，这种方法不可行。

The results indicated that Sr^2^+ and S^2^- diffused into the SiO~2 layer. O vacancies and strontium oxide were found in the SiO~2 layer.

本文通过XPS的测量，分析了新结构器件中SrS/α-SiO~2界面的各成分的芯电子能谱的变化和深度分布，发现Sr^2^+向SiO~2中扩散较深并以氧化物的形态存在，介质层以SiO~x(x=1.65～1.70)的形态存在。

Trace element ; Sr- Nd isotope ; alkali syenite ; geodynamics ; Guangdong Province

微量元素； Sr-Nd同位素；碱性正长岩；地球动力学；广东省

But detail geochemical study indicates (Wu et al., 2002)that those rocks have low Sr〓(0.706), high ε〓(-0.5～-1.9), young age of Nd model age (970-1090Ma) and syngenesis with surrounding I-type granites. The rock originated from partial melting of source igneous rock and belongs to I type granites. The occurrence of high alumina minerals is related to the intense interaction of magma and liquid during the late period of magma evolution, and tetrad REE patterns are formed.

但详细的地球化学研究表明(Wu et al。，2002)，岩体具有低的Sr〓(0.706)、高ε〓(-0.5～-1.9)、年轻的Nd模式年龄(970-1090Ma)及与周围Ⅰ型花岗岩的共生关系，认为岩体是火成岩源岩物质部分熔融的产物，属于Ⅰ型花岗岩，高铝矿物的出现与岩浆演化晚期强烈的岩浆—流体相互作用有关，并形成特征的稀土元素四分组效应。

Nd-Sr isotopic compositions for 20 granitoid bodies of syntexis series in South China have been studied in this paper.

本文讨论了华南20个同熔系列花岗岩类的Nd-Sr同位素组成。

The systolicεand SR in HCM group is lower than that in the normal control group.

和应变率(strain rate，SR)的变化'一8，但所测的。

U-Pb isotopic system of uraninite gives a mineralization age of 407 Ma ±, this is similar to the whole-rock isochron age of Rb-Sr.

通过铀铅同位素体系研究发现，矿化年龄在407Ma左右，与Rb-Sr全岩等时线年龄接近。

Taking Bendong and Xiqiu granitic bodies as an example, the thesis expounds geochemical characteristics of mantle-derived type granitoids in Sourthern China in REE and trace elements as follows: lower ∑REE, obvious fractionation of LREE and HREE, negative anomaly of Eu, relative higher ∑LREE/∑HREE,〓 and 〓 ratioes, rich in transitional elements and poor in large-ion lithophile and immobile elements compared with acidite means by Vinogradov. Original mantle-normalized distribution pattern of incompatible elements is one kind of rich -in-strongly incompatible elements type with enrich of K and loss of Sr, P, Ti and trace element association makes a feature of siderophile and chalcophile elements. The tectonomagmatic discriminating shows that mantle -derived granitoids in Southern China belong to orogenic granitoids formed in island arc/marginal sea basin system.

以本洞和西裘岩体为例，论文阐明了华南幔源型花岗岩稀土和微量元素地球化学特征，表现为稀土总量较低，轻重稀土元素分馏明显，负铕异常和∑LREE/∑HREE、〓、〓比值较高，与维氏酸性岩平均值相比华南幔源型花岗岩过渡族元素含量较高而大离子亲石元素和非活动性元素含量较低，不相容元素原始地幔标准化分配型式属强不相容元素富集型并呈K富集而Sr、P、Ti亏损的特点，微量元素组合以亲铁和亲铜元素为特征，构造岩浆判别显示华南幔源型花岗岩属造山花岗岩，其形成构造环境为岛弧/边缘海盆系统。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。