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social service
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social service
社会服务
国家和社会通过专业的福利机构、社会组织或社区组织为解决人民生活中的实际困难,提高人民的生活质量而有针对性地提供服务和设施的社会福利计划和项目,又称社会福利服务或福利服务。
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impurity absorptione
impurity atom
impurity average
impurity band
impurity band conduction
impurity band conduction detector
impurity defect
impurity defect; extrinsic defect
impurity diffusion
impurity diffusion technique
impurity effect
impurity ensemble
impurity in semiconductor
impurity inspection of crude drug
impurity in the wool fibers
impurity level
impurity mode
impurity photo conductance
impurity photo-conductance
impurity photoconduction
impurity resistivity
impurity scattering
impurity scattering for carrier
impurity segregation
impurity semiconductor
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