Cocksfoot is one of our deepest rooting grasses and, judged purely on a dry-matter basis, it is also one of our most productive species.
鸭茅草是扎根最深的一种草，纯粹从干物质角度判断，也是我们最丰产的草种之一。
Protein levels were 14, 19 and 30% crude protein on a dry matter basis; the diet form was soaked pellets mixed with endive.
蛋白含量分别占食物净重的14%，19%和30%；食物是一种混合了菊苣的浸湿小球。
It is also found that there is an approximate linear correlation between the yields of gas and tar of coal and the volatile matter of coal on dry, ash-free basis.
煤的干馏气和焦油产率与煤中可燃基挥发分之间有近似的线性关系。
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