“fixed area”造句，怎麼用fixed area造句

5、Relating to or being a method especially of land cultivation intended to increase the productivity of a fixed area by means of an increase in capital and labor.

2、In forest inventory, multistage sampling is not limited to sampling units with fixed area.

4、If desert is only a small fixed area, it may be a kind of benevolence to human beings, but too much, too much, is a disaster.

3、Based on ecology theory, Eco-agricultural system is the agriculture production system that was built in a fixed area.

1、(i) such payments are based on fixed area and yields;