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生意被限制在极狭小的范围内。
Business is confined within very narrow limits.
youdao
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从而，能在较小体积内对极细粉尘、研磨火花细粒处理、且能在室内直接排风。
It can treat fine powdered dust in small space and direct exhaust in room.
youdao
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从而，能在较小体积内对极细粉尘、研磨火花细粒处理、且能在室内直接排风。
It can treat fine powdered dust in small space and direct exhaust in room.
youdao