User model is the basic foundation for researching personal learning and navigation.
用户模型是研究个性化的学习建构和导航的基础。
Should be in advance to understand the basic foundation of soil and ground endurance.
应事先了解基础地基的土质和地耐力情况。
And the basic foundation of prediction and control of metal cutting burr is established.
进而,为实现切削毛刺的预报与控制开辟了新途径。
应用推荐