The author thinks apiculture must take the route that industrialization runs.笔者认为养蜂业必须走产业化经营之路.The tool with the main est apiculture is beehive and mew plinth.养蜂最基本的工具是蜂箱和巢础.How to accelerate apiculture development?如何加快养...
She engaged herself to repay her debt within two months.她答应在两个月内偿还她的债务。It will take 30 years to repay the loan...还清贷款需要30年的时间。He was so good to me that I can never repay the debt I owe him...他对我太好了，我永远也还不清这份人情。They agree...
采用 三维 非线性有限元的方法, 分析了流槽的受力性能.Analyze load behavior of sluice with method of - dimension - linearity finite - element method. 6.空气输送流槽是一种利用压缩空气作为动力来输送物料的装置.Air conveying chute is a device which conveies material by compres...