地球经纬仪教学模型（32厘米）产品介绍
中文版
本款地球经纬仪教学模型专为初高中地理课堂设计，以1:4000万比例还原地球形态，采用32厘米直径球体配合精密经纬线刻度系统，帮助学习者直观理解空间地理概念。模型表面使用哑光覆膜工艺清晰标注了赤道、南北回归线、极圈等8条核心纬线，配合24小时制经线刻度环，可演示时区换算与昼夜变化规律。
球体采用高精度数控成型技术，确保大陆板块轮廓误差小于0.3毫米，重要城市定位准确度达角分级别。旋转支架运用三点平衡原理，支持±15°倾斜角度调节，可模拟地球公转轨道参数。底座配备磁吸式时区计算盘，通过滑动时区指示器可进行跨时区时间换算实践。
在教学应用中，教师可通过实物演示昼夜更替现象，解析太阳直射点移动规律。学生可动手测量两地经度差，计算地方时差异，或通过观察晨昏线位置理解季节成因。模型附带20个实践教学方案，涵盖时区计算、航线规划、气候带分析等课程标准要求的核心知识点。
产品选用环保ABS复合材料，通过旋转结构强化测试，确保20000次以上转动精度。球体表面采用抗刮擦处理，适合课堂高频次使用。配套提供的AR识别图卡可连接智能设备，扩展显示三维地形剖面与洋流运动模拟。
English Version
This 32cm Earth Coordinate Demonstrator is designed for secondary school geography education, featuring precision-engineered latitude and longitude grid system on a 1:40 million scale model. The matte-finished sphere clearly displays 8 key parallels including the Equator, Tropics, and Polar Circles, integrated with 24-hour meridian dial for time zone demonstration.
Manufactured with CNC molding technology, the model achieves <0.3mm continental contour accuracy and arc-minute positioning precision for major cities. The three-point tilting mechanism allows ±15° axial inclination adjustment to simulate orbital parameters. Magnetic time zone calculator on the base enables practical exercises in temporal coordination.
Educators can demonstrate diurnal cycles and solar declination variations through physical manipulation. Students may conduct hands-on activities measuring longitudinal differences, calculating local time variations, and observing solstice phenomena. The package includes 20 curriculum-aligned lesson plans covering time zone computation, flight path planning, and climate zone analysis.
Constructed with durable ABS composite, the model withstands over 20,000 rotational cycles while maintaining positioning accuracy. Scratch-resistant surface treatment ensures longevity in classroom environments. Augmented Reality interface cards extend learning through 3D terrain visualization and ocean current simulations when used with mobile devices.
This teaching aid effectively bridges abstract concepts with tangible learning experience, fostering spatial cognition through multi-sensory engagement. Its balanced design accommodates both whole-class demonstration and small group experimentation, making complex geospatial relationships comprehensible for learners aged 12-18.
