例句與造句

1. What can happen is the accumulated credits can become greater than the annual abstraction rate.
2. Studies have been undertaken as a correlation between the two events and have resulted in the abstraction rate being reduced by 50 %.
3. By the 1990s, groundwater abstraction rates exceeded groundwater recharge rate in many districts, whilst only 37.5 % of all districts has " safe " recharge rates.
4. It's difficult to find abstraction rate in a sentence. 用abstraction rate造句挺難的