refine

verb

1. make more complex, intricate, or richer

e.g. refine a design or pattern

Synonym: complicaterarifyelaborate

2. make more precise or increase the discriminatory powers of

e.g. refine a method of analysis
refine the constant in the equation

3. attenuate or reduce in vigor, strength, or validity by polishing or purifying

e.g. many valuable nutrients are refined out of the foods in our modern diet

4. improve or perfect by pruning or polishing

e.g. refine one's style of writing

Synonym: polishfine-tunedown

5. reduce to a fine, unmixed, or pure state
separate from extraneous matter or cleanse from impurities

e.g. refine sugar

Synonym: rectify

6. treat or prepare so as to put in a usable condition

e.g. refine paper stock
refine pig iron
refine oil

1. 提炼;精炼
When a substance is refined, it is made pure by having all other substances removed from it.

e.g. Oil is refined to remove naturally occurring impurities.
油经过提炼去除天然存在的杂质。

2. 改进，改善，改良（过程、理论或机器）
If something such as a process, theory, or machine is refined, it is improved by having small changes made to it.

e.g. Surgical techniques are constantly being refined.
外科手术的技术不断得到完善。

1. 改进：这样的好处是,当你使用 reflect构造一个类的时候,可以得到更精确的类别而不是泛泛的Object. 另一种需要当心的问题是:返回值协变(covariant returns). 即改进(refine)子类方法的返回值. 旧代码如下:

2. 净化：机器人利用主页中的超文本链接遍历Web,通过URL引用从一个HTML文档爬行到另一个HTML文档. 网上机器人收集到的信息可有多种用途,如建立索引、HTML文件的验证、URL链接验证、获取更新信息、站点镜象等. (3) 进一步净化(refine)结果