昨天10时，福州五一广场陆续发射12枚“火箭”，这些“火箭”箭体是用过的易拉罐瓶，尾翼是三合板 边角料 ( leftover material )，整流罩是一般塑料瓶，降落伞是废弃五彩绸布，“火箭”的制作者(fabricator)是一群刚满10岁的普通孩子。
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In the NiTi shape memory alloy products processing,it will have a lot of waste(leftover material),and the material utilization rate was about 20%,which results in a great deal of materials waste.
在NiTi形状记忆合金产品的加工过程中,将产生大量的废料(边角料),其材料利用率约为20%,造成材料的极大浪费。
参考来源 - 重熔NiTi形状记忆合金的组织与相变行为研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Newborn stars, for instance, are surrounded by disks of leftover material.
举例来说，新生的恒星四周会环绕著剩馀物质所构成的气盘。
I made the curtains, there was enough leftover material for some cushion covers.
我做完窗帘，剩下的布料还足够做几个垫子。
I made the curtains, and there was enough leftover material for some cushion covers.
我做完窗帘，剩下的布料还足够做几个垫子。
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