The use of arable land to complete the conversionvalue of the land will be cultivated land into arable land and the output value, we have had effectiveness of the use of arable land.
耕地利用完成了耕地价值转换，将耕地投入价值与耕地产出价值比较，便产生了耕地利用效益问题。
2
A loft conversion can add considerably to the value of a house.
阁楼改建能大大增加房屋价值。
《柯林斯英汉双解大词典》
3
You only fill in one data value; after all, you want a computer to do this conversion for you instead of figuring it out.