专题文章
时长:00:00更新时间:2024-05-07 10:00:28
To make a handmade rocket.you will need the following materials。1.A cardboard tube or PVC pipe for the body of the rocket。2.Fins made from cardboard or lightweight plastic。3.Nose cone made from a cone-shaped piece of cardboard or plastic。4.Rocket engine and igniter。5.Recovery system such as a parachute or streamer。6.Glue.tape.and scissors。
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