Abstract: A plant cultivation device includes a plate having a top edge, a lower edge and two ends, wherein the two ends are connected with each other so as to form a tubular object in which medium is filled. A plurality of holes are defined therethrough and young plants are planted in the medium via the holes. A netted member is engaged with an inner periphery of the plate and located close to the lower edge of the plate so as to prevent the medium from flowing from the device.

Abstract: A cold storage includes a room having a peripheral wall, and a plurality of cold storage container modules each received in the room and each including a plurality of hollow cold storage containers each having an open end wall attached to and flush with the outside of the peripheral wall of the room. Each of the cold storage containers includes a drawer slidably mounted therein and extending outward from the open end wall thereof.

Abstract: An irrigation system includes a water tower connecting with a water storage tank, a lift device mounted on the bottom of the water storage tank for lifting/lowering it, a first suction pipe having a first end portion connecting to the water storage tank, a discharge pipe having a first end portion connecting to the second end portion of the first suction pipe, a first motor controlled valve mounted on the first suction pipe for opening/closing the connection between the first suction pipe and the discharge pipe, a sprinkler head mounted on and connecting to the second end portion of the discharge pipe, a second suction pipe having a first end portion connecting to the water tower and a second end portion connecting the first end portion of the discharge pipe, and a second motor controlled valve mounted on the second suction pipe for opening/closing the connection between the second suction pipe and the discharge pipe.