plastic membrane短语¹⁴⁴⁹⁷²⁺² 基本例句 塑料薄膜 This paper expatiated that the technique outlines and the succeeded examples on the cultivation with plastic membrane covering and hole fertilizing at the dryland orchards. 阐述了旱作果园中采取的穴贮肥水和地膜覆盖栽培技术要点及成功范例。 dictall