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- On the basis of analyzing the construction characteristics and the working proce ss of a revolving spade soil opener a mathematical model was established to desc ribe spade moving trace. 在分析铲式成穴器的结构特点和工作过程的基础上,建立了打穴铲运动轨迹的数学模型并分析了打穴铲的运动规律和成穴机理。
- Abstract: On the basis of analyzing the construction characteristics and the working proce ss of a revolving spade soil opener a mathematical model was established to desc ribe spade moving trace. 文摘:在分析铲式成穴器的结构特点和工作过程的基础上,建立了打穴铲运动轨迹的数学模型并分析了打穴铲的运动规律和成穴机理。
- He was digging potatoes with a spade. 他正在用铁锹挖马铃薯。
- I think they are using a revolving stage. 我想他们用一种旋转舞台。
- He's not afraid to call a spade a spade. 他不怕直言不讳。
- Clods of soil stuck to the spade. 土块黏在铁铲上。
- revolving spade 旋转锄
- He had an idea revolving in his mind around the new enterprise. 他脑子里反覆盘算着那个新企业。
- The revolving sign was spinning round and round in the wind. 旋转的标志牌在风中打着旋儿。
- Just give him a bucket and spade and he's in seventh heaven! 只要给他一个桶子和一把铲子,他就高兴极了!
- Bob, who had no intention of working, leaned lazily on his spade. 鲍伯不想干活,懒洋洋地倚在铁铲上。
- We dig some pits with a spade before planting the trees. 种树前,我们先用铁锹挖了些坑。
- Orders came that we should spade the trench in an hour. 有命令要我们必须在一小时内挖好战壕。
- The wheel is revolving about its axis. 轮子在轴上转动。
- It's hard to work this soil with such an old spade. 用这样一把旧铁锹挖地真费劲。
- A revolving cylindrical sieve used for screening or sizing rock and ore. 滚筒筛一种圆筒形的可旋转的筛,用于岩石和矿石的筛分或大小测量
- I had a new idea revolving in my mind. 我在心中反复思考一个新的设想。
- The wheels stopped revolving suddenly. 车轮突然不转了。
- Let's call a spade a spade. The man is a liar. 我们直说了吧,这个男人是个骗子。
- You can discard a spade on the third trick. 你可以在打第三墩牌时垫掉一张黑桃。