Ball screw is produced by high-level mechanical equipment coherentproduction, higher precision.
滚珠丝杠都是由高水平的机械设备连贯生产出来的，制作精度更高。
2
In the past decade we have seen significant advances in the production of coherent broad-band Terahertz beams.
过去10年，相干宽带太赫兹光束的生产有了很大的进展。
3
It is an unprecedented change in the production of human life, across geographical and time constraints, the human connection into a coherent whole, as people work and live in an important factor.