“經濟地”造句
他們未能
經濟地經營電話網絡.
They were unable to run the telephone network economically.
產生激光光子的費用太高,因此,不能用它很
經濟地制造出大多數化合物.
Producing laser photons is too expensive to make most compounds economically.
目的是使樹冠保持在一定的高度和寬度的范圍內,更
經濟地管理.
The purpose is to keep the tree within height and width bounds for more economical management.