sea service是什么意思 sea service怎么读
sea service的用法和样例
- The medical service is a branch in the study of military medicine.
卫生勤务是军事医学研究中的一个学科。 - Special material supply and service support are provided by the services and arms through their organic channels.
专用物资供应和专用勤务保障由军兵种按建制系统组织实施。
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