Older water heaters can rust, collect sand and sediment in the bottom, and are also costing you 15% of your household’s energy dollars.

老旧热水器的底部会生锈，积灰并产生沉淀物，同时还会消耗15%的家庭能源。

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A burst accident of a sand tank, which was used for removing rust by means of spraying on an oil tank, was analyzed, and the prevention countermeasure was provided.

对油罐喷砂除锈过程中发生的一起砂罐爆炸事故进行了剖析，并提出了预防对策。

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Last, a practicable, advanced and intelligent rust removal robot of sand blast was successfully designed.

最终成功设计出一个能实际应用、技术领先的智能喷砂除锈机器人。

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If the chip or scratch has already begun to rust, lightly sand the area, and apply a thin coat of primer to any bare metal before painting.

FORBES: Zen And The Art Of Keeping Your Car Looking Beautiful

After dismantling its brake drums, carburetor, motor head and oil pan to sand off the rust, he gave the refurbished car to his mother in exchange for lifts on his newspaper route.

FORBES: Almost Out of the Woods

Further south from Mobor, a trip across the languid Sal on a rust-bucket passenger ferry will take you to solace and solitude on magnificent Agonda Beach with its wide swathe of sand.

BBC: Uncovering the best beaches of Goa