钻铤必须是由非磁性物质做成的。

The drill collars must be made of nonmagnetic material.

youdao

非磁性物质不能制成磁铁。

A non-magnetic substance cannot be made into a magnet.

youdao

用于从非磁性物料中自动清除0.1 -35公斤重的铁磁性物质。

It is used for clearing 0.1 ~ 35 kilograms ferromagnetism impurity from the nonmagnetic materials automatically.

youdao

用于从非磁性物料中自动清除0.1 -35公斤重的铁磁性物质。

It is used for clearing 0.1 ~ 35 kilograms ferromagnetism impurity from the nonmagnetic materials automatically.

youdao