Results The middle line through ANS and perpendicular to zygomaticofrontal line has less mean of middle structure index and side middle structure index.
结果以过ANS点垂直于两侧颧额点连线的直线为面中线，其正中结构指数和侧方结构指数均值较小。
The gnomon in the middle is perpendicular to the plate, parallel to the earth's axis, and points to the celestial North Pole (near the north Star).
晷针垂直于晷盘，平行于地轴，指向天北极(北极星附近)。
Hold the thermometer perpendicular to the middle of the forehead until a single point of light appears.
将温度计平置，移近前额中央，直至温度计精确的显示出温度。
Hold the thermometer perpendicular to the middle of the forehead until a single point of light appears.
把温度计平置，让红灯照在额头中间直至两道红光会成一点。
Hold the thermometer perpendicular to the middle of the forehead until a single point of light appears.
把温度计平置，让红灯照在额头中间直至两道红光会成一点。
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