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Those formed during the flare-up period, i.e., the Pana Formation, however, show significant geochemical variations from low-K tholeiitic through calc-alkaline to shoshonitic compositions coupled with increasing enrichment in LREEs. Therefore, the volcanic successions are divided into four suites, namely, calc-alkaline suite, low-K suite, high-REE suite and shoshonitic suite.

在大喷发时期产生的火山岩最不均质，组成从低钾拉斑质、钙碱质变化到钾玄质，并且呈现不同程度的轻稀土元素富集，我们据此可将本期林子宗火山岩区分为钙碱质系列（calc-alkaline suite）、低钾系列（low-K suite）、高稀土系列（high-REE suite）和钾玄系列四类。

The driving force of the process is the partial pressure difference caused by the temperatures and compositions of solutions on both sides of the membrane.

其过程中的驱动力来自于膜两边由温度和溶液成分不同所造成的压力差。

After that, I established myself as the first full-time solo percussionist. I wrote and arranged a lot of musical compositions since few had been written specially for solo percussionists.

含义：打那以后，我建立了自己做第一个专职打击乐器独奏演员的理想，因为很少有人专门为打击乐器独奏演员写过曲目，我撰写并编排了许多音乐曲目。

We have carried out analyses on gas, mineral cement and bulk rock compositions and isotope ratios together with petrography and fluid inclusion to assess the origin of the H2S.

为了评估 H2S 的成因，分析了气体、矿物胶结物和全岩的组分和同位素，并进行了岩石学和流体包裹体的研究。

Carbon and associated rare element gas isotopic compositions indicate that the genesis of the CO_(2 )is mainly by petrosal chemical reaction.

热力学分析表明，盆地7000～8000m深度段的地层远远没有达到纯钙质碳酸盐岩热分解所需的温度，碳同位素和伴生稀有气体氦同位素组成指示CO2主要为壳源岩石化学成因。

It may be caused by the fact that the researches were mainly focused on the compositions in the rhombohedral and morphotropic phase boundary.

在此组分范围内，由于铁电微畴的影响，很难得到光学级的PMN-PT单晶。

Our research results show that the BS-PT ceramics with the compositions near the morphotropic phase boundary is a good candidate material for the piezoelectric actuator and transducers.

研究表明，准同型相界附近的BS-PT陶瓷是一种优良的压电换能器和传感器材料。

This is repeated for many different compositions and temperatures to generate the phase diagram.

为了制成相图，对许多不同组成和温度重复进行操作。

This is repeated for many differ t compositions and temperatures to generate the phase diagram.

为了制成相图，对许多不同组成和温度重复进行操作。

They have distinctive compositions, and display the compositional trends: from Mg and Ca-enrichment towards Fe-enrichment from big phenocryst—the core of small phenocryst—the rim of small phenocryst and microcrystals, typical characterisitc of tholeiite series.

这三种类型的辉石在成分上有明显的差异，从大斑晶辉石—小斑晶辉石核部—小斑晶辉石边部和基质辉石，成分由富镁、钙向富铁方向演化，显示出拉斑玄武系列的特点。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。