设计、制造或使用喷灌机具,都必须通过试验了解喷灌机具的性能。如在研制喷头时,首先必须通过试验,选定适宜的设计参数,之后还要对试制样机进行全面试验,了解样机的机械性能和水力性能,以便进行改进;即使喷头已经定型投产,仍应进行抽样试验,随时检查、控制产品质量;而进行喷灌系统的规则设计和管理,因为要使用喷灌机具,所以更需要了解机具的性能,以便最大限度地发挥喷灌机具应有的效益。喷灌机具泛指动力机、水泵及自吸装 Design, manufacture or use of irrigation equipment, irrigation equipment must be through experiments to understand the performance. Such as the development of the nozzle, we must first pass the test, select the appropriate design parameters, but also after the trial prototype for a comprehensive test to understand the prototype mechanical and hydraulic properties in order to make improvements; even if the nozzle has been put into production should still be carried out Sampling test, check at any time to control product quality; and rules for sprinkler irrigation system design and management, because the use of irrigation equipment, so you need to understand the performance of the machine in order to maximize the benefits of irrigation equipment. Irrigation equipment refers to power machines, pumps and self-suction installed