今天我在机场取行李的地方，看到一个老爷爷很艰难地拽着传送带上他那只又大又重的箱子，然后放弃了。
Today, I was at the airport baggage collection when I saw an old man struggling to get his very old and heavy suitcase off the belt before giving up.
在大型堆取料机安装过程中，旋转机构安装误差控制及其调整是一个十分重要的环节。
In the installation process of huge stacker reclaimer the error control and adjustment of the installation of revolving gear is an important link.
在重磁场解析延拓资料处理中，量板取数自动判读及计算机实现是个重要的实际问题。
In the analytical continuation data processing of gravity and magnetic field, the important practical problem is the automatic reading decision for template access and its implementation on computers.
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