此外，还对物料的干燥基本单元操作进行了详细解释。
In addition, the drying of materials basic unit operation for a detailed explanation.
社区是社会政策重要的和基本的操作单元。
A community is the basic unit where social policies are specifically operated.
社区是社会政策重要的和基本的操作单元。
A community is the basic unit where social policies are specifically operated.
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