training aid

短语词组

短语

• Technical Training And Aid 技术培训与援助
• practical training aid 实务训练的教具
• speech training aid 言语训练器
• ground training aid 地面训练辅助设备
• training aid write training 说写训练
• sonar training aid 水声训练设备
• Golf Training Aid 高尔夫球训练援助
• scientific training aid factory 科技教具厂
• auditory training aid 电子视觉听觉训练辅助设备
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