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sum of the years' digits depreciation
proj.manag.	快速折旧法; 年限总额折旧法
securit.	年数据折旧总额
sum-of-the-years'-digits depreciation
commer.	使用年限总额折旧法 (指 sum-of-the-years'-digits method 使用年数比率折旧法)
econ.	年数总和折旧法
sum-of-the-year-digits depreciation
tech.	快速拆旧 (法); 总和年数折旧 (法)

sum of the years' digits depreciation: 6 phrases in 3 subjects

Business	1
Economy	3
Technology	2