1.
The star indicates a property of a pure substance or a collection of pure substances.
星号表示纯物质或纯物质集合的性质。
2.
CALCULATION OF VAPOR PRESSURE FOR PURE SUBSTANCES WITH MATLAB
利用Matlab计算纯物质蒸气压
3.
(chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight.
（化学定律）纯物质中元素以一定比例的重量结合成该物质。
4.
I believe, however, we can get at least some pure materials before the end of this year.
不过，年终以前我们起码可以得到少量纯物质。
5.
Numerical Simulation of Dendritic Growth in Pure Material's Solidification Process;
纯物质凝固过程枝晶生长现象的研究和模拟
6.
a simple substance, mixture
单纯的物质、 混合物
7.
any substance that adulterates (lessens the purity or effectiveness of a substance).
任何掺入物质（降低一种物质的纯度或效力）。
8.
Something added that lowers value or purity.
掺杂物，杂质能使原物降低成色、纯度的添加物
9.
making impure or corrupt by adding extraneous materials.
加入其它外来物质使之不纯或腐坏的。
10.
a special method was used to suBlimate the material.
一个特殊的方法被用来纯化这种物质。
11.
Separation and Purification of Cerebrosides from Sea Cucumbers
海参中脑苷脂类物质的分离纯化研究
12.
Progress on Extract and Purificationion of Animal Tissue Protein
动物组织蛋白质提纯方法的研究进展
13.
reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities.
使变得精细无杂质或处于纯状态；从异物中分离或使混杂物纯净。
14.
Purification and Characterization of Hepatic Stimulator Substance
肝再生刺激物质的提纯及生物学活性研究
15.
Isolation and Characterization of Bioactive Substances from Bitter Melon Seeds;
苦瓜籽中生物活性物质的分离纯化及表征
16.
Microbiology Measuration of Barreled Purified Water and Mineral Substance Water
桶装纯净水和矿物质水的微生物学测定
17.
The specific gravity of a material is the ratio of its density to that of water and is therefore a pure number.
物质的比重指的是物质的密度与水的密度的比值，所以是纯数。
18.
Pure metals are chemical elements whick cannot be broken down into other substances.
纯金属是不能分解成其他物质的化学元素。