economical

• It 's more economical to use gas than coal ..
  烧煤气比烧煤上算。
• This was a most economical way to get over it .
  这是一种非常省钱的蒙混办法。
• Cook them four hours on a small, economical flame .
  用文火把它们煮上四个钟头。
• Trina had always been an economical little body .
  屈丽娜一向就是这么个精打细算的人。
• These instruments are extremely compact and economical .
  这些仪器体积极小，十分经济。
• We must find economical methods for extracting oil from shale .
  我们必须找到从页岩中采油的经济方法。
• We call such a spanning subgraph t an economical spanning subgraph .
  我们称这样的生成子图T为廉价的生成子图。
• To be economical these processes will require efficient solvent recovery operations .
  若要经济，就要有有效的溶剂回收工序。
• Engineers are forever seeking more economical methods of solving old problems .
  工程师们常常探索解决老问题的更加经济的办法。
• "we won't be economical today," cried bertha, "i feel utterly reckless. "
  “咱们今天不要节省，”伯莎大声说，“我根本不在乎。”