Family - the family unit is the primary unit.
家庭观念—家庭是最基本的社会单位。
Curriculum is a primary unit for realizing training goal.
课程是实现培养目标的基本单元。
Use packages as the primary unit of release and distribution.
应该将包作为软件版本发布的基本单元。
Work area of oil extraction is a primary unit in petroleum production.
采油工区是原油生产的一线单位。
Work area of oil extraction is a primary unit in petroleum production.
采油工区是原油生产的一线单位。
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