| 摘要 |
Two (or more) tubes (10a, 10b) are formed in side-by-side relation joined together at a juncture (10c) including a plurality of performed members (6) bonded to and within the juncture (10c) at spaced locations along the longitudinal axes of the preformed members and of the juncture. Each of the preformed members (6) includes a pair of flow-reducing, groove formations (44, 46) one on each side of the longitudinal axis (42) of the preformed member (6). The juncture (10c) is slit along the longitudinal axes (42) of the preformed members (6) to thereby form two (or more) drip irrigation lines DIL1, DIL2) each integrally formed with a section of the plurality of preformed members (6), each section having one of the groove formations (44, 46) serving as a flow-reducer element in the respective line. <IMAGE> <IMAGE> |
