不同成分

Low-boiling phenols in low-temperature coal tar are important chemical raw materials. For the identification and determination of the individual phenol boiling below 210℃ in the low temperature coal tar, the methods of gas chromatography, liquid-liquid chromatography followed by ultra-violet analysis and fractional distillation followed by infrared analysis were evaluated and compared.

随着煤炼油工业的发展，煤焦油中的酚类，特别是低級酚，作为化工原料的利用很重要，我們应用(1)气液色譜法，(2)液液色譜与紫外光譜法結合及(3)精餾与紅外光譜法結合三种不同方法对210°以前的低級酚进行了各种异构体的成分分析，比較分析結果：三种方法对同一样品进行分析时，最大絕对誤差在2％以内，其中以气液色譜法最为快速，液液色譜法次之，精餾-紅外光譜法費时間較多；但后二种方法所得数据較完全。

A fragment of a lozenge-shaped pattern sword is examined and analyzed. It is found that the sword was cast with bronze alloy. There was a thin fine dendrite layer in some areas of the fragment surface. Its structure and compositions are different from the matrix in this fragment.

本文对东周时期一块菱形纹饰剑残段进行了分析测试，结果表明：在剑的表面规则地分布着一层厚约几十μm的细枝晶层，该层的成分和组织与基体完全不同，有较好的耐蚀性，能保护基体不受腐蚀。

The objective of this paper was to investigate the effect of different treatments on fermentation quality of Xinjiang small reed and its nutrition constituent at different growth periods (heading period, blooming, fruiting). The five kinds of ensiling treatments (Fresh grass ensilage, fresh grass +10.0 g or 15.0 g molasses/kg, fresh grass +2.0 mL or 3.0 mL formic acid/kg) were carried out in the same growth period and its fermentation qualtiy and nutriton constituent were compared with each other.

以不同生育期（抽穗期、开花期、结实期）的新疆小芦苇为实验材料，同一生育期采用鲜贮、鲜草＋糖蜜10和15 g/kg、鲜草＋甲酸2和3 mL/kg等5种青贮处理，并对其相互间发酵品质和营养成分进行比较。

The carburizing atmosphere distribution in the mesh-belt furnace without muffle was studied by measuring the main compositions of furnace atmosphere and changes of carbon potential at ten different zones in the furnace,and the effects of different factors on the atmosphere distribution were investigated and discussed.

通过测量网带炉内 1 0个不同区段的主要炉气成分和碳势变化，研究了无马弗网带炉内的气氛分布规律，分析和探讨了各种因素对气氛分布的影响。

Objective: Comparing the differentiations of components in yams of various resource, in order to find a reliable way to identify them.

目的：比较不同产地山药内在化学成分的差异，为判定山药的产地来源提供可靠的方法。

The study showed that there are marked differences in volatiles between different kinds of tea.

研究结果显示，不同茶类之间在芳香油成分组成和芳香油总量方面均明显差异，具有茶类特征。

It suggested that tea processing had great influence on formation of tea volatiles and it is possible to improve tea flavour by improved processing techniques.

说明不同茶类加工工艺的差异是导致香气成分差异的重要原因，该结果为通过加工技术的改进达到改善茶叶香气提供了充分的依据。

After the skin absorption accelerants and surface active agents of different proportions were put into glad happy troches,the influences on the effective compositions of magnolol and skin absorptions of honokiol were studied by use of the experiment methods of high efficient liquid phase The experimental results showed that the skin absorption accelerants and surface active.

采用离体大鼠皮为皮肤模型，自制透皮吸收装置，研究了在欣乐片剂中加入不同比例的透皮吸收促进剂和表面活性剂后，它们对有效成分厚朴酚和和厚朴酚透皮吸收的影响。

Moreover, MSCs are easy to transfect and express the exogenous gene, so they will be widely used in cell therapy and genetic therapy.

但目前采用的体外分离培养无法得到单克隆的细胞成分，也缺乏可靠的鉴定标准，不同来源的间充质干细胞有何差异等间题亟待解决。

The fatty acid composition of different parts of tilapia was analyzed by gas chromatography.

使用气相色谱对罗非鱼的不同部位脂肪酸成分进行分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。