open sprinkler

基本解释

Sprinkler system is historical and beneficial, being divided into close-type sprinkler system and open-type system.
自动喷水灭火系统历史悠久、应用效果良好，分为闭式系统和开式系统。
Ca absorption and tipburn of lettuce were studied under different application of N, K, Ca, sprinkler irrigation and border irrigation in open field.
在露地栽培条件下，研究了不同氮、钾、钙水平处理以及喷灌、畦灌对生菜钙吸收和干烧心的影响。