| http://www.w3.org/ns/prov#value | - However, in the case of an occurrence of emergency such as firing or the like, since a manual depressing operation as mentioned above takes an excessively long time, it is desirable that a depressing plate 312 is arranged above the second base member 303 so as to simultaneously depress all the depressing pins 311 with a user's hand or foot to disconnect all the wires 302 from the second base plate
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