LDPE is a very soft plastic which is not easily broken.
低密度聚乙烯是一种很软且不易碎的塑料。
One is to coat the glass with a substance that will make sure the glass doesn't shatter into pieces when it is broken--that could be a plastic material for example.
一方面是给玻璃杯涂一层特殊材料,防止其摔碎,这一材料可能会是塑料。
He can scan a broken part that is no longer available into a computer, or design a missing one from scratch, and then print out a copy made of plastic.
他可以先把一个坏了的零件用电脑扫描,或者凭空设计出丢失的零件,然后用3 - D打印机制造出一个塑料的模型。
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