These microplastics included a substance commonly known as PET and widely used in the manufacture of clothing and food and liquid containers.
这些塑料微粒包括一种通常被称为 PET 的物质,广泛用于服装、食品和液体容器的制造。
A small dam is relatively cheap to construct: modest reservoirs known in India as tanks used to be built and maintained by local villagers.
建造小水坝相对要便宜一些,在印度被称为水槽的简易水库通常由当地村民建造和维护保养。
This process is known as reverse conversion and is performed using the same tools used in Step 1.
这个过程称为逆转换,可以使用与步骤1中相同的工具完成。
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