Twitter使用价值的大小直接取决于你所选择关注的人的品质的高低。
Its value is dependent on the qualities of the ones you choose to pay attention to.
主轴在轴承上运转的平稳性直接影响工件的加工质量，一旦主轴的旋转精度降低，则机床的使用价值就会降低。
Spindle bearing on the stability of operation in direct influence on the processing quality, once the spindle rotation precision decrease of the machine tool use value will be low.
这种由地震信息直接测定有机质热成熟度的方法，对于勘探程度较低尤其是钻井稀少的盆地，有着较高的使用价值。
The method that measures organic thermal maturity directly from seismic information is of great value for areas with lower exploratory levels, especially for the basins with sparse welldrillings.
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