nonrecurring expenses
时费用
nonrecurring expenses
时费用
Straw, a kind of natural biodegradable material, was used as reinforced fibers for preparing nonrecurring biodegradable flowerpots by compression molding technology.
采用廉价的秸秆为增强材料,以淀粉为基体材料,通过模压成型制备出一次可生物降解花盆。
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