石棉纤维的表面覆盖有一层铁或钙，这就是为什么用铁染色时石棉纤维经常被称为“含铁小体”。
The asbestos fiber becomes coated with iron and calcium, which is why it is often referred to as a "ferruginous body" as seen here with an iron stain.
研究土壤大孔隙经常采用的方法有染色法、CT扫描技术和入渗方法；由于土壤大孔隙的高度不规则性，常采用分形理论研究大孔隙的特征。
The methodologies of macropore research had dye tracer, ct scanning and infiltration, and the fractal theory was also used to researched macropore characters.
无论是蓝眼睛还是金发，都没单个的基因对应。由于对应于这些性状变化的基因片段在染色体上的位置很近，所以这些变化经常同时发生。
There is no single gene for blue eyes and blonde hair, but these adaptations are often found expressed together because the genes for each trait are located close together on the same chromosome.
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