以下为句子列表：
英文: In case that the rolling bearings with no inner ring or outer ring and without inner and outer rings ars selected, the sueface haedness of the holes or housing holes as race, the working accuracy and surface quality shall be similar with the race of beari
中文: 选用无内圈或无外圈，以及无内、外圈滚动轴承时，作为滚道的孔或外壳孔表面的硬度、加工精度和表面质量应与轴承套圈的滚道相仿，以保证负荷能力和运转能与有套圈轴承相同。
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英文: The machine is characterize by good rigidity、high working accuracy easy in operation.It can be operated with high speed and heavy cutting load and is efficient in production.
中文: 本机床具有刚性好、强度大、精度高、操作方便、调整简单等特点，能进行高速及重负荷切削，有很高的生产效率。
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