This paper introduced the preparation of a new corrosion resistant unsaturated polyester resin from PET waste.

介绍了用PET废料制备新型耐腐蚀不饱和树脂工艺，确定了配料及反应温度。

youdao

This paper introduced the preparation of a new corrosion resistant unsaturated polyester resin from PET waste. The formulation and reaction temperature were defined.

介绍了用PET废料制备新型耐腐蚀不饱和树脂工艺，确定了配料及反应温度。

youdao

It has always been a headache to deal with the waste from PET and other plastics.

处理 PET 和其他塑料制成的垃圾一直是一件令人头疼的事情。

youdao

When rain and melting snows flow over a city's streets, parking lots and sidewalks, that runoff picks up all kinds of pollutants residues of petroleum and pesticides, soaps and solvents, as well as pet and wildlife waste.

VOA: standard.2010.08.04

He has aimed his anti-deficit rhetoric, both before the election and since, principally at waste and earmarks, the pet projects legislators insert into spending bills.

ECONOMIST: The budget deficit

We need an approach that goes after waste in the budget and gets rid of pet projects that cost billions of dollars.

WHITEHOUSE: Weekly Address: A Bipartisan Approach to Strengthening the Economy | The White House