The impact of coating resin and pigment on the cool roof properties was analyzed, and the endurable "cool roof 'PVDF coating with low dirt pick-up was presented."

分析了涂料树脂、颜料对凉爽屋顶性能的影响，以及PVDF涂层通过提高抗污性而保持长期凉爽的技术。

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Strong winds pick up the loose dust and dirt, mixing them with industrial pollution.

大风卷起了松散的尘沙，并混进了工业污染物。

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Ben ran down the beach to the car and drove along the dangerous dirt road back to Number Two to pick me up.

本沿着海滩奔向汽车，把车从危险的土路上开到二号海滩来接我。

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Pay particular attention to the jockey wheels (these are small wheels in the chain cage of the rear mech that guide the chain round the sprockets) because they pick up hard-packed dirt from the chain.

BBC: Sport