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1·The expeller consists of a screw bolt, a steel cylinder and transmission components.

该推出器由螺杆、钢筒及传动部件组成。

2·Lipski says those labeled cold pressed, expeller processed, or extra virgin are the ones to look for.

Lipski说，那些标有冷压、排除器处理或加纯的，就是我们要找的。

3·By comparison, she says when oils are prepared by the cold-press or expeller process, or, in the case of olive oil, are extra virgin, preparation involves only pressing, heating, and bottling.

她说，经过比较，如果油只经过冷压或排除器处理(对橄榄油来说是加纯处理)，这些程序只涉及加压、加热和灌装。