针对天线座上螺钉松动的情况，根据螺纹松动的机理，提出有效的防松措施。
Thus effective anti-loosing measures are proposed on the basis of mechanism of screw looseness so as to avoid bolt-loosing in the pedestal.
ORSO的技术专家避免采用卫星定制框架，而使用了省时的钉板盒，盒上每隔5厘米就凿了一个螺钉孔。
Shunning made-to-order satellite frames, ORSO's technologists use time-saving pegboard boxes perforated with screw-holes five centimetres apart.
Michael继续在地板上磨着螺钉。
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