Water well drillers may specialize in a specific method of drilling, such as cable, rotary, auger, hammer or reverse circulation drilling.
水井钻井工可能会专注于一个特定的钻探方法，如电缆，旋转，钻，锤或反向循环钻探。
Water well drillers may specialize in a specific method of drilling, such as cable, rotary, auger, hammer or reverse circulation drilling.
水井钻井工可能会专注于一个特定的钻探方法，如电缆，旋转，钻，锤或反向循环钻探。
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