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設(shè)計(jì)一輛象火車那樣的運(yùn)稻草的平板車?---[請(qǐng)教] |
Re: 設(shè)計(jì)一輛象火車那樣的運(yùn)稻草的平板車?---[請(qǐng)教]
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出于成本,得好好考慮下安全問題!!!
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點(diǎn)評(píng)
現(xiàn)在的人老有才了
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我老家在農(nóng)村 這種事俺干過
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