tōng / guò / yōu / xuǎn / fǎ / shí / yàn / suǒ / xū / de / shí / jiān / hé / chéng / běn / dōu / jiàng / dī / le

通过优选法，实验所需的时间和成本都降低了。

Using an optimization method reduced both the time and cost required for the experiment.