That is exactly why a more sensible preservation strategy would be to assist the farmers to modernize their farms to the extent needed to maintain viability.
这就是为什么更明智的保护策略应该是帮助农民实现农场现代化，以维持其生存能力。
2
The continued viability of the kiva itself in Spanish mission settlements has also been underestimated by historians.
基瓦本身在西班牙传教定居点的持续生命力也被历史学家们低估了。
3
The pollen viability of Miscanthus sinensis was determined by in vitro pollen germination method.