Engneering Drawing multimedia CAI system is a multimedia teaching software that we are developing. Engneering Drawing multimedia CAI is a rather difficult software among CAI softwares.
工程制图多媒体CAI是我们研制的一个多媒体教学软件，工程制图多媒体教学软件在CAI软件中是比较难于制作的。
Engneering Drawing multimedia CAI system is a multimedia teaching software that we are developing. Engneering Drawing multimedia CAI is a rather difficult software among CAI softwares.
工程制图多媒体CAI是我们研制的一个多媒体教学软件，工程制图多媒体教学软件在CAI软件中是比较难于制作的。
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