Do not use any sort of heavy machinery — drill press, lathe, or mill; it will not be safe.
不要用像钻床、车床、磨坊等重型器械，这样不安全。
Permanent packers are constructed of materials that are easy to drill or mill out.
永久型封隔器由容易钻掉或者磨铣掉的材料制成。
Thatched cottages, fences, roads, rural ask Beans Canopy, farmland, windlass, melon stands mill, drill for people to create a simple rural landscape.
茅草房、篱笆墙、乡问小路、豆棚瓜架、农田、辘轳、磨、耧等为人们营造出一个纯朴的乡村自然景观。
Common round steel or steel tube may be rolled into solid or hollow twist drill rods by using the said rolling mill.
普通元钢或普通钢管经此轧机后，可直接变成实心或空心麻花钻杆钢。
Common round steel or steel tube may be rolled into solid or hollow twist drill rods by using the said rolling mill.
普通元钢或普通钢管经此轧机后，可直接变成实心或空心麻花钻杆钢。
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