ballast-tamper

常见例句

• electric ballast tamper
  電動石碴夯實機
• Pig iron used as permanent ballast.
  壓載鉄做爲永久性壓艙物的生鉄
• Please don't tamper with the clock radio.
  請不要瞎弄那衹收音機閙鍾。
• The ship was furnished with ballast.
  船上裝了壓艙物。
• hydraulic ballast tamper
  液壓擣固機
• ballast tamper
  擣碴機
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