unserviceable

基本解释

• adj.无用的；不实用的；无益的

同根派生

英汉例句

• The surveillance radar is unserviceable.
  监视雷达不工作。
• To damage threads to an unserviceable condition.
  螺纹损坏后不可用。
• Unserviceable due to excessive wear.
  由于过度磨损而不可用。
• SSR inoperative (unserviceable).( SSR is out of service.
  二次监视雷达不工作。
• The following essential approach aid is unserviceable with R/W 31 localizer.
  必要的进场设备：31号跑道航道不工作。