| 摘要 |
Two or more closed vessels (11, 12) have opening mechanisms (111, 122) for their filling and discharge. The mechanisms are of two kinds, so that the first kind of mechanism in one vessel is sealed to the mechanism of the other kind in the other vessel. The other vessel-opening mechanisms (112, 123) are either connected to those (113) of an end vessel (13) or to pipes. The mechanism of one kind has a weakened point, so as to break and separate vessels connected to it from each other and seal them off automatically. A cover accommodates a number of vessels and has opening mechanisms of the same kind. A number of such covers are coupled together in pairs. |
