________ of plastics
"All the ________ are made of ________ , not plastics, and t
英语翻译Cutting Other Materials:The machining of plastics,fiber-
Because there are different types of plastics that cannot be
Plastics can not____steel completeLy A.instead B.instead of
This cup is made _______(of /from)plastics.
____ of plastics,the instrument is light.(make)
plastics are the best insulator of electricity,rubber follow
英语翻译The role of plastics The unhygienic use and disposal of
this is the new type of plane__ parts are made of plastics
i was told that some biks are made of plastics instead of st
In the modern world many things are made of plastics _______
英语翻译As the founder and CEO of a West Michigan plastics manuf