The corn was still sown, cut and threshed as it was a hundred years ago.玉米的播种、收割、脱粒方法还和一百年前一样。When the wheat is headed it is reaped and threshed.麦子熟了,就把它收割脱粒了.It was difficult to obtain clean grains when the crop was thr...
Please move the manhole cover away .请将人孔盖移开。Stainless steel bolts and nuts shall be tightened on manhole covers.人孔盖使用不锈钢螺栓和螺母拧紧.Debus turn head in the manhole 2 to have equipments smoothly entered.在人井2中,将弯头卸下,便于设备进入.How ...
There is some trouble in the borehole. Don't leave the rig floor.井下出现复杂情况, 不要离开钻台.Borehole hydromining is a kind of safe and efficient new mining method.钻孔水力采煤是一种既安全、又能极大地提高资源利用率的新的采矿方法.But the research on borehole ...