Furthermore , the maximum and minimum cleaning angle and sliding angle of seeds in the scoop were determined , the angle of clapboards hatch and the thickness of scoop top were derived 建立了持種空間及在排種平面投影的理論計(jì)算公式,分析了持種空間隨分種勺結(jié)構(gòu)參數(shù)和工作位置的變化。
持: hold; grasp種: species持種鉆頭: special drill持中: kewithin bounds持重: (謹(jǐn)慎穩(wěn)重) prudent; cautious; discreet; dignified 老成持重 experienced and prudent; dignified and experienced持只山: yugadhara: the first of the seven concentric mountains持重待機(jī): carefully bide one's time持指骨鉗: fiege bone holding forceps; finger bone holding force持重努傷: overload injury持之有故: have sufficient grounds for one's views; a well-founded view [opinion]; all one's opinions and views have their proof持仲: mochinaka持之以恒: persevere; in a persistent way 刻苦學(xué)習(xí),持之以恒 study assiduously and perseveringly