preliminary operating and maintenance instruction 预备操作与维修说明书
The thorough analysis and preliminary practice of it proves that, it can be used as the reference material for instruction classes and the teaching material for exercise classes.
深入的分析与初步的实践证明，它可作为教学课的素材与活动课的教材。
This activity used the open classroom instruction as well as timely replying questions timely programming training so that MSTC gave students a preliminary understanding of the programming ideas.
此次活动采用开放性课堂的授课，以及及时答疑，及时编程训练的方式，使微软技术俱乐部的同学初步了解了编程的思路。
The present study was just a preliminary attempt to apply differentiated instruction in English writing class. Hopefully, this research can provide some implications for English learning and teaching.
本次研究只是对差异教学在英语写作教学中的应用做了初步尝试，希望能够对英语写作学习和写作教学有所启示。
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