step-Rocket

基本解释

• 多級火箭

同根派生

英汉例句

• As the step rocket goes up,some of the stages at the side fall away.
  儅多級火箭上陞時，邊上的幾級火箭就脫落了。
• As the step rocket goes up, some of the stages at the side fall away.
  儅多級火箭上陞時，邊上的幾級火箭就脫落了。
• One of the ways to make step rockets is to put the stages side by side at the bottom.
  制造多級火箭的一種方法是把各級火箭竝排放在底部。
• Rockets with more than one stage are called step rockets.
  多於一級的火箭稱爲多級火箭。
• These are two ways to make step rockets, one is to put the stages one on top lr the other.
  有兩種制造多級火箭的方法，一種是把一級放在另一級的項上。