查询词典 SR

It is found that partial substitution of Sr for La induces the hole carrier evidenced by positive thermoelectric power but no bulk superconductivity is observed.

通过热电势的测量，我们发现在LaFeAsO中用少量的Sr部分取代La所获得的样品热电势为正值，说明体系中被引入了空穴载流子，但是并没有观察到超导电性。

The relatively high Sr/Y (~ 40) and low HREE (Yb.8 ppm) suggest that garnet may play an important role, either as restite or as a fractionated phase, during petrogenesis of the rock.

其较高的Sr/Y（~ 40）和低的重稀土（Yb.8 ppm）反映在其形成过程有石榴石的残留或分离结晶。

The variation of ionic radius r with Sr and the phase difference factor of ion were studied.

研究了离子半径r与离子的Sr和相差异因子的关系。

Study on the lithology and petrology (fine-grained cold-quenching ring of the enclaves, the reverse vein, the complex enclaves, the plagioclase phenocryst from both host rock and enclaves that is consist on the crystal form, composition and light, et al.), petrogeochemistry (Y/Nb=2.77～6.82, La/Nb=0.91～4.33, Ba/Nb=0.13～37.86, et al.), Sr and Nd isotope most ISr between 0.7031～0.7041,εNd(t=5.2～7.1 and LA-ICP-MS zircon U-Pb dating (the host rock age is 311±12Ma, and enclaves is 306±7Ma), believe the Huangyangshan pluton is crust-mantle hybrid genesis.

通过岩石学和岩相学（包体细粒淬冷边，反向脉，复合包体以及寄主岩石和包体中斜长石斑晶在形态、成分、光性上的一致性等），岩石地球化学（Y/Nb=2.77～6.82，La/Nb=0.91～4.33，Ba/Nb=0.13～37.86等），Sr和Nd同位素（ISr多数在0.7031～0.7041，εNd在5.2～7.1之间）以及LA-ICP-MS锆石U-Pb测年（寄主岩石为311±12Ma，包体为306±7Ma）综合研究认为黄羊山花岗岩是壳-幔源岩浆混合成因的。

Some injected oocytes were activated by Sr(superscript 2+) after various incubation periods and observed for formation of a second polar body and pseudo-polar body.

在注射后的不同培养时间，对重构卵子以Sr(上标 2+)激活，观测第二极体和类极体的形成，同时对重构胚进行染色体计数，并将发育良好的重构胚进行输卵管移植。

Rb-Sr isochron age of porphyroid fine granite most closely related with molybdenum mineralize is 154Ma,K-Ar isochron age is 152Ma.

研究表明，分布广泛的似斑状中粗粒花岗岩K—Ar年龄为219—188Ma，与钼矿化有密切关系的似斑状细粒花岗岩Rb—Sr等时线年龄为154Ma，K—Ar等时线年龄为152Ma。

The geochemical characteristics of basic to intermediate-basic igneous rocks indicate that they belong to a tholeiite suite. Their chondrite-normalized REE patterns are of nearly flat and slightly LREE-enriched type, and their primitive mantle-normalized and MORB-normalized trace element spidergrams are generally similar; the LILEs Cs, Ba, Sr, Th and U are enriched, while Rb and K and the HFSEs Nb, P, Zr, Sm, Ti and Y are depleted. All these show comagmatic evolutionary and genetic characteristics.

基性—中基性岩浆岩的地球化学特征表明其属于拉斑玄武岩系列，稀土元素分布型式呈REE近平坦型—LREE轻微富集型，微量元素原始地幔标准化的蛛网图和MORB标准化蛛网图上的分布型式总体很相似，富集大离子亲石元素Cs，Ba，Sr，Th，U而相对亏损Rb，K和高场强元素Nb，P，Zr， Sm，Ti和Y，显示同源岩浆演化成因特征。

In a word,it is more credible to use Mg/Ca ratio as climate psychrometer which has less external influence and it is questionable to use Sr/Ca and Ba/Ca ratios as one climate proxy because they are sensitive to many factors just like vegetation,soil microbe activity.

总体来看，石笋中Mg/Ca与Ba/Ca值的相关性很弱，可以认为分别受到降水和土壤微生物作用的影响，而Sr/Ca比值却可以与两者同时保持一定的正相关关系，表明其至少受到以上两种因素共同制约。

As a whole, the rocks from diorite enclaves, through quartz-diorite, granodiorite to monzonitic granite, have the feature of REE slightly increasing, Eu from weakly positive transits to negative anomaly, but the diorite enclaves which has Eu negative anomaly. Besides, the Ba, Nb, Ta, P and Ti all show negative anomaly, and have positive anomalies of K and Th, simultaneously, there exists Sr positive anomaly in some rocks. Along with the increasing of the SiO〓, the P and Ti have negative anomaly, Th and K positive anomaly are obvious.

张广才岭中生代不同时期的花岗岩具有相同的Sr、Nd同位素特征，均具有高ε〓值、低，值的突出特点，ε〓值集中在-2～+4之间，〓值主要集中在0.703～0.706之间。

The β-activity of ~(89,90)Sr is measuured on GM counter after radiochemical separation.

放射性~(89，90)Sr是放化分离后在G-M计数器上测量的。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。