Regional mapping and isotope dating indicate that the upper and lower subgroups of the Huade Group are located in stratigraphically equivalent horizons rather than have an overlying and underlying contact relationships, and that the Bayan Obo Group in the Shangdu area is also a part of the Huade Group.
提要：区域填图研究表明，化德群上，下亚群并不是上下关系，而是层位相当的一套地层，而且商都一带的白云鄂博群也属化德群的一部分。
Methods Twenty cases of prostatic cancer were divided into positive bone scanning group (n=12) and negative bone scanning group (n=8) according to the results of isotope bone scanning, and 20 cases of benign prostatic hyperplasia were used as control.
选择20例前列腺癌患者，按同位素骨扫描结果，分为无骨转移的阴性组（8例）和有骨转移的阳性组（12例），20例良性前列腺增生症患者为对照组，分别检测骨髓及血清中PSA值，并测定骨髓PSA与血清PSA的比值。
In our experiments, ERK increased in operating group by isotope and west- ern blot, and ERK2 expression increased by RT-PCR.
本文是首次用RT-PCR的方法检测大鼠脑中的mRNA，得出的结果显示其在手术组较正常对照组表达升高。
The characteristics of the Nd-Sr-Pb isotope system further indicate that the meta-alkali basaltic dykes were originated from a mantle source mixed between two end-members of DMM and EM Ⅱ sources, indicating that their source was reworked by subduction in the MesoproterozoicNeoproterozoic time; and the meta-tholeiites resulted from a mantle source, formed by mixing between the DMM and EM Ⅱ end-members for the Cangshan Group but the DMM and EM Ⅰ for the Julin Group in the Paleoproterozoic-Mesoproterozoic period, indicating that the two Gruops respectively belonged to the different blocks before the Mesoproterozoic time.
Nd-Sr-Pb同位素体系特征进一步表明，变碱性玄武质岩墙形成于中-新元古代，其源区为DMM与EMⅡ端员的混合，反映板块俯冲作用的影响；变拉斑玄武岩形成于古-中元古代，其源区在苍山群为DMM与EMⅡ端员的混合，而在苴林群为DMM与EMⅠ端员的混合，暗示在中元古之前二者分属不同的地球化学块体。
The latter is rich in Cl but poor in Tl, high in I, rich in heavy sulfur isotope, and relatively depleted in alkali-earth group elements.
后春富氯，低铊，高碘，富重硫同位素，相对贫碱土族元素。
The results of lead isotope analysis indicate that the materials of the Bayan Obo Group originated at 1314 Ma B. P. and that the mineralization occurred at 6650 Ma B. P.
铅同位素分析结果表明，白云鄂博群的物质来源始于1310Ma，矿化时间为665Ma。
This group of elements includes two radiogenic isotope decay systems of 190 Pt 186 Os and 187 Re 187 Os.
铂族元素包含两个同位素衰变体系（190Pt-186Os和187Re-187Os）。
Isotope ages indicate that the Songduo Group is the product of metamorphism in Caledonian.
同位素定年资料表明，松多岩群主期变质为加里东期变质作用的产物。
Results Isotope GERI showed that the reflux positivity rate was 0% in experimental group, and 93.33% in control group.
结果同位素胃食管反流指数测定显示，实验组反流阳性率为0%，对照组为93.33%。
Through studying the rock pyrolysis parameters, the stable isotope and elemental composition of kerogen, the coal sample constituent, group composition and normal alkane, it is thought that most of the organic matters belong to the Type ⅱ B;
通过对岩石热解参数、干酪根稳定同位素和元素组成、煤样组成、族组成和正构烷烃的研究，认为有机质类型绝大多数都属于ⅡB型；
Histological and ultrastructural examination, γ picturing and isotope scanning with 99m Tc were done in group 1 at 2 PBH.
1组在伤后2h行99mTc同位素扫描与γ照相，伤后0、2h行组织学和超微结构等观察。
The atom % 15N excess in leaf and stem of treated plants measured by 15N isotope dilution method is lower than that of reference group.
~（15）N同位素稀释法测得其茎叶~（15）N原子百分超低于不固氮参照组，表明，2,4-D加田菁固氮根瘤菌诱发的小麦类瘤能固定大气氮。
Based on the research of isotope ratios of lead, sulfur, oxygen and carbon in the ores and rocks of this area, it is held that Qinglongcun Group serve as the source bed of gold.
通过对矿区矿石、岩石中铅、硫、氧同位素组成研究，查明青龙村群为金的矿源层。
Presented in this paper are Sm-Nd isotope and major, trace and rareearth ele-ment analyses of bimodal volcanic rock s of the Shilu Group and other stratigraphicuanits in northwestern Hainan Island, South China.
对海南岛石碌群第6层及其相当层位中海相双峰火山岩 Sm-Nd 同位素、微量和稀土元素的研究表明，位于火山岩带西段军营和石碌的细碧岩具有 N-MORB 特征，在中段和东段芙蓉田和兰洋的变拉斑玄武岩具有 E-MORB 和 IRT特征。
In this research, pyroxeneferous amphibolites of the lower Fuping Group complex show an Sm-Nd isochronal age of 3352±50 Ma and an average model age of 3374 Ma, which indicates that the isotope age of the bottom boundary of the Fuping Group complex is close to 3400 Ma.
本次对阜平岩群下部含辉石斜长角闪岩Sm-Nd同位素年代学的详细研究，获得Sm-Nd等时线年龄3352土50 Ma和平均模式年龄3374.5 Ma，说明阜平岩群底界年龄接近3400Ma，从而也反映阜平深变质绿岩带形成在古中太古代，是我国目前最老的绿岩带，也是世界上最古老的绿岩带之一。
The second group are the mixtures of Jurassic coal-formed oils and Cretaceous-derived oils. The carbon isotope, n-alkanes and isoprenoids compositions of these oils are similar to core extracts from Jurassic coal measures. However, sterane and terpane compositions of these oils show affinity to Cretaceous source rocks. It is deduced that coal-formed oils dissolved the biomarker-rich Cretaceous bitumen of relatively low thermal maturity, and overprinting occurs during oil migration.
第二类原油具有侏罗系煤系烃源岩与白垩系湖相泥质烃源岩混源的特点，这类原油的碳同位素组成、正构烷烃分布特征和姥植比等均表现出煤成油的特征，但甾、萜烷烃类化合物组成与白垩系烃源岩接近，推测是由于侏罗系煤成油在向上运移成藏过程中，受到成熟度相对较低、生物标志物相对丰富的白垩系烃源岩的浸析作用所致。