The drip irrigation system had to be small enough that a farmer only had to risk a quarter acre, even if he had two, because it was too frightening, given all that he had at stake.
細粒灌漑システムは 農民のリスクが1/4エーカーで済むような 大きさでなければいけません 2エーカーを所有していたとしても 全てをつぎ込むのはリスクが大き過ぎるからです