Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度差值按从到小顺序排列为：椭圆、圆、抛物线、悬链、曲线。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象为平行于赤道直线，经线表象为对称于中央直经线曲线，且面积没有变影集合，并得到一组概括公式。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度差值按从到小顺序排列为：椭圆形、圆形、抛物线形、悬链形、双曲线形。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象为平行赤道直线，经线表象为中央直经线双曲线，且面积没有变形投影集合，并得到一组概括公式。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度的差值按从到小的顺序排列：椭圆形、圆形、抛物线形、悬链形、双曲线形。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线平行于赤道的直线，经线对称于中央直经线的双曲线，且面积没有变形的投影集合，并得到一组概括公。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

深度的差值按从到小的顺序排列：形、形、抛物线形、悬链形、双曲线形。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象平行于赤道的直线，经线表象对称于中央直经线的双曲线，且面积没有变形的投影集合，并得到一组概括公式。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度差值按从到小顺序排列为：椭圆、圆、抛物线、悬链、曲线。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象为平行于赤道直线，经线表象为对称于中央直经线曲线，且面积没有变影集合，并得到一组概括公式。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度的差值按从到小的顺序排列为：椭圆形、圆形、抛物线形、悬链形、双线形。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象为平道的直线，经线表象为对称中央直经线的双线，且面积没有变形的投影集合，并得到一组概括公式。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度的差值按从到小的顺序排列为：椭圆形、圆形、抛物线形、悬链形、双线形。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象为平道的直线，经线表象为对称中央直经线的双线，且面积没有变形的投影集合，并得到一组概括公式。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度差值按从到小顺序排列为：椭圆形、圆形、抛物线形、悬链形、双线形。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象为平行直线，经线表象为对称中央直经线双线，且面积没有变形投影集合，并得到一组概括公式。

Results The difference values calculated were various with the arch form, the sequence was oval, round, parabola, catenuliform, and hyperbola from big difference to smell.

牙弓深度的差值按从到小的顺序排列为：椭圆形、圆形、抛物形、悬链形、双形。

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬表象为平行于赤道的直，经表象为对称于中央直经的双，面积没有变形的投影集合，并得到一组概括公式。