求翻译：替代性岗位是指用工单位的职工因脱产学习、休假等原因在该工作岗位上无法工作的一定期间内，可以由被派遣劳动者替代工作。是什么意思？

Alternative position refers to the labor unit employees due to full-time study, leave not work because the jobs within a certain period, you can by be dispatched workers alternative work.

Alternative positions is the use of the staff of the Unit study leave, and leave in the work place does not work within a certain period of being dispatched, you can substitute workers.

Because the vicarious post is the staff who refers to the employing labor unit reasons and so on out of production study, leave of absence in certain period which on this operating post is unable to work, may by dispatch the worker to substitute the work.

Alternative positions means accepting units of staff due to reasons such as studying, leave in the workplace does not work within a certain period, can be replaced by dispatched workers.

正在翻译，请等待...