main index造句

1、The explosive limit is one of main index to judge explosion fatalness of fuel gases.
* 极限是评定可燃气体火灾 * 危险的主要指标之一。

2、GNP is one of main index of national economy.
GNP是国民经济的重要指标之一。

3、The main index which indicates the distribution of the remnant oil is oil saturation.
决定剩余油分布的主要指标是含油饱和度。