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地学夏令营
释义
地学夏令营
dì xué xià lìng yíng
中小学生利用暑期进行的地学科技活动。主要内容是对自然现象进行观察与探索。以野外活动为主,常涉及山、川、湖、海、石洞、矿产等知识,和旅游联系较密切,是深受中小学生喜爱的科学普及活动。
随便看
plane indicatrix
plane inputing system
plane inquiries
plane in space
plane instability model
plane insurance
plane integral expression method
plane interface
plane interference
plane intersection
plane involute
plane involution
plane iron
plane-iron
plane isomerism
plane it smooth
plane-jaw vice
plane jet
plane joint
plane joints
plane journey
plane joysticks
plane kernel
plane kerosene
plane kinematics
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