积件是由教师和学生根据教学需要自己组合运用多媒体信息资源的教学软件系统。
Integral ware is a software system, by which teachers and students can use multimedia information source freely in the need of instruction.
这种应力常数标定方法适用于各种表层结构发生根本变化的表面强化件的X -射线应力常数测定。
It is believed that this calibration is suitable for X-ray stress constant measurement for various surface-reinforced elements, whose surface layer structure has changed radically.
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