main chemical compositions的意思|示意

Objective: To determine the main chemical compositions of Radix Salviae Miltiorrhizae in different producing areas.

目的：测定不同产地丹参的主要化学成分及其含量。

Method the same varieties of Rhizome Dioscorea were cultivated in different areas at the same time and then the main chemical compositions were analyzed.

方法选同一品种怀山药在不同地区同期种植，分析其药材的主要化学成分。

Materials and Methods: 60 gallstones were scaned by ct invitro and four main chemical compositions of every stone were analysed qualitatively by infrared spectrum.

材料和方法：60例胆石标本进行体外CT扫描，以红外光谱仪定量分析所有结石的四种主要化学成分。

The fiber morphology and pulping and papermaking feasibility of Albizia falcataria and Gmelina arborea were investigated in the paper, also their main chemical compositions were determined.

对进口阔叶木材南洋楹和石梓的化学成分、材性特点、纤维形态及制浆性能进行了研究。

How to choose the chemical cleaners used by plastic-aluminum composite plate of the external walls of building, the main compositions of cleaners and the way of cleaning were introduced.

介绍了建筑物外墙装饰材料塑铝复合板化学清洗剂的确定、主要成分及清洗方法等。

The chemical compositions of a bauxite tailing were analyzed. A glass-ceramics was prepared using the bauxite tailing as main raw material by sintering method.

分析了铝土矿尾矿的化学组成，并以铝土矿尾矿为主要原料利用烧结法制备出了微晶玻璃。