经检验，改造后的风机运行平稳、安全可靠，工作效率明显提高，达到了预期目的。
By being tested, the reformed ventilator has its steady work, reliable safety and the work efficiency has increased obviously. Consequently the expected goal has been realized.
为保证工作平稳性和工作效率，吊挂必须附加一些复杂的机构。
To load smoothly and effectively, sometimes it is necessary to append complicated mechanical devices on the hanger.
为保证工作平稳性和工作效率，吊挂必须附加一些复杂的机构。
To load smoothly and effectively, sometimes it is necessary to append complicated mechanical devices on the hanger.
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