<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD4AAAAVCAYAAAAeql2xAAACU0lEQVRYCe2W0Y3CMAyGuwMbsAMTwAzwxhCIARDPiAXgHfGMGAAGYAAGgAEYIKev0l85vjSXInRCAkuVE9u1/TuO2yp8KFUfijt8gX/ayTcnfrlcQq/XC1VV1c/hcKhrMZ1O6z06bP6i1WoVeJ4hYio+cS09Ho8wHA5rPZy9qE2Xy6UBjpPb7RYGg0EEENlkMgnX61VxWjmBfMKtxk5BnMViUUtZ9/v9oOIjxK8K6uOU6mzIX8BHo1FdABmdTqeoEJJ7TpLPgsbX/X6PThFfAk6ncSAUBIIrz5xOOVpfkkXAcTIej5sE2G82G9m2crWaEpUh79vrU1oYf6L4te1t4+V0Ng+LC3kEHCdKDufL5bIpgpykuK+6bCgaOgiOzxwJEPdceWDvCyE78s3pFIsO8Vc4Ao4THmi/3zetJQdt3Ffd25EorVxK6hTlkgOX0ymeLZRkEXDdBQJzt0spB7wraMW0gLx/CySnky9rL1kEfDabhfP5HLbbrfRF3Ae3L+HvGcKn2p2DsMPN7u2aOH6PLAscJQNgPp8Xt7gApYKhs5Oaq4NdCSkXa08RbOtrjb+cDn32jqeUJUlik6ooSduJbqcysfhOWxlA9POS+llSDD/4bPyUDj25ZKd6G1BepGWPx2P9IyNu7XPtbu3sussAte91XWt22feiO24Vdg1w/qoAzCdqt9sl29YOJPu+X+v0bLt6m1ft7TWwPouA63ssThFo1xRx8v8BKBXby8ijLZci4Ov1uh5UTHsAMwC7fJd9Qu+wLwL+Dom+Oocv8FdX9N39/QC6v8smSp1NHAAAAABJRU5ErkJggg==" />表示5小时内某一高度的平均风速。( )
<img src="data:image/png;base64,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" />表示5小时内某一高度的平均风速。( )