The mosaic column emitter type drip irrigation pipe is widely used in water-saving irrigation fields , such as greenhouse, grapery planting, farmland planting, city greening and deserts greening etc.
内镶圆柱式滴头滴灌管广泛用于温室大棚、葡萄园种植、园林栽培、城市绿化、荒漠绿化等众多节水灌溉领域中。
Thereafter a second semiconductor region (8) of the first conductivity type, comprising, for example, an emitter region, is formed on a part of the base region (7).
然后在基极区（7）的一部分上形成包括比如发射极区的第一导电类型的第二半导体区域（8）。
Thereafter a second semiconductor region (8) of the first conductivity type, comprising, for example, an emitter region, is formed on a part of the base region (7).
然后在基极区（7）的一部分上形成包括比如发射极区的第一导电类型的第二半导体区域（8）。
应用推荐