multi-sensory learning aids 多种感觉教具
multi sensory learning aids 多种感觉教具
other aids for learning 其他辅助学习仪器
Over 300 worked-out examples and more than 800 problems provide valuable learning aids.
超过300个算出的例子和超过800个问题提供学习帮助的贵重的物品。
To assist the Technical Manager in the preparation of learning aids, evaluation methods, and service training seminars for distributor repair and warranty centers or customers.
协助技术经理为分销商维修及质保中心或客户准备相应的学习支持，评估方法，服务培训讲座等；
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