機械犁 的英文怎麼說
中文拼音 [jīxièlí]
機械犁
英文
mechanical plough-
Machinery and equipment for working the soil. mouldboard ploughs. working elements. vocabulary
土壤作業機械和設備.型板犁.作業器件.詞匯Agricultural machinery ; horse - drawn ploughs, terms
農用機械.牲畜拉犁.術語Based on wide - ranging knowing the mechanical technology of overturning crops stalk into soil inland and overseas, combined with the present condition and the requirement of the mechanical technique developing, aimed at the tendency of the remained stalks heightened of food crops in south china, the thesis brings up an mechanizing technical project and mating device, which contain the function of plowing soil and overturning crops stalk on the base of plough. it is tightly packed, reliable and can be used conveniently
本文是在對國內外秸稈還田機械技術廣泛了解的基礎上，結合我國秸稈還田的現狀及其對機械技術發展的需求，針對我國南方主要糧食作物收獲后滯留在田間的秸稈日益增高的態勢，提出了一種基於犁耕基礎上的集土壤翻耕與高稈翻埋功能於一體，結構緊湊、使用方便、性能可靠的機械化技術方案及配套裝置。Agricultural machinery ; body of ploughs, terms
農業機械.犁體.術語In this paper i calculate the reasonable possession quantity of port handling machineries with chance - constrained linear programming. first in the paper is the background and meaning of this research ; then analysis present situation of port machinery management both in practice and theory ; in chapter 3, i qualitatively discusses characters influencing machinery quantity, which include lifting ton, intact rate and using rate, age of machinery, machinery purchase and working cost and so on. in chapter 4, i take the influencing characters to mathematic model of chance - constrained linear programming, aiming to maintain the need of production and reduce machinery cost
文章首先介紹了選題的背景、意義以及主要工作；第2章介紹了港口機械管理在港口企業管理中的地位與作用，以及我國港口機械設備管理與配置現狀，並簡要介紹目前港機合理擁有量的理論研究方法；第3章從技術與經濟角度定性分析了各種因素對港機擁有量的影響，其中主要包括機械起運量、完好率與利用率、機械設備役齡、購置與營運成本等；第4章將各種影響因素引入模犁，提出以完成生產任務、機械成本最低為目標，應用隨機線性規劃模型計算港口流動機械合理擁有量的方法；第5章以大連港大港區為例對模型進行應用，選擇四種型號叉車為研究對象，對其歷史經濟與技術數據進行統計分析，其中重點對隨機變量單位臺時維修費用進行了正態分佈擬合。Agricultural machinery ; tractor ploughs, nomenclature
農業機械.機引犁.名稱分享友人