A crane truck or wheeled machinery is not allowed to do horizontal lifting on a 5% slope . If it has to operate on this slope , the vehicle must be leveled up.

吊车、轮式专用机械车不准在5%以上的坡道上横向起吊作业，如必须作业时，应将车身垫平。

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Since his 2005 opening of the tapas-themed Amada restaurant in Philadelphia, he has grown to operate 15 restaurants in five states, a food truck, a catering business and a farm.

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Unlike the light-duty vehicle market, most medium- and heavy-duty truck purchasers operate on slim profit margins where fuel costs are a major factor in their economic survival.

FORBES: Magazine Article