医学工程人员再培训是一项长期的工作。
企业的质量体系内审工作是一项长期的工作，为使其有计划、有步骤地进行，一般应编制一份年度的内部审核计划表。
The internal audit of quality system is a long - term work. Enterprises should compile an annual project to make it carry out regularly.
他们的议程涉及中国国内许多最严峻的政策挑战，必然是一项长期工作。
Their agenda, covering many of China's toughest domestic policy challenges, is necessarily long-term.
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