English: Heavy equipments are commonly used in construction and demolition activities in Hong Kong. Village houses are being built in rural areas in the photo. Heavy machineries use fuels that are different from private cars and are sources of air pollution.
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Captions
Heavy equipments are commonly used in construction and demolition activities in Hong Kong. Village houses are being built in rural areas in the photo. Heavy machineries use fuels that are different from private cars and are sources of air pollution.