您说的是金属疲劳吧
金属疲劳在这种环境下是不会出现的
技术疲劳是在cyclic loading的情况下才会有,而一般爱好者的赤道仪,离cyclic loading还差得很远很远呢
http://en.wikipedia.org/wiki/Fatigue_(material)
High cycle fatigue strength (about 10^4 to 10^8 cycles) can be described by stress-based parameters. A load-controlled servo-hydraulic test rig is commonly used in these tests, with frequencies of around 20–50 Hz. Other sorts of machines—like resonant magnetic machines—can also be used, to achieve frequencies up to 250 Hz.
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