range("cutter_head_rotation_speed", "sand", 25, 30," rotations_per_minute"),
range("cutter_head_swinging_speed", "sand", 9.62, 10.61, "metres_per_minute",
range("cutter_load", "sand", 11.07, 13.81," megapascals"),
range("dredge_pump_vacuum", "sand", 0.4, 1.08, "megapascals"),
range("slurry_density"," sand", 47.5, 59, "percentage"),
range("slurry_speed"," sand", 4.94, 5.08," metres_per_second"),
range("production","sand",1.68,1.89,"metres_cubed_per_second"),
事实意思是：范围（参数，土质类型，参数下限，参数上限，单位）。
如何用visual prolog从键盘输入实数值与参数上下限的值进行比较。老师从帝国理工带回来这个把我折磨坏了。。。。。。

水帖美如花，养护靠大家！！

不会visual prolog,只会amzi!prolog。

还是说得不清楚，大概是这样
?- range(_,_, Shangxian, Xiaxian,_),read(Value), Value >= Shangxian, Value =< Xiaxian.