| 摘要 |
Diatomaceous earth in the powder form, to be used 1 when applied as a surface application to provide traction for pedestrians traversing icy walkways; 2 as a means of providing escape traction for vehicles which are hopelessly stuck on an icy highway; and 3 to provide sustaining traction when a vehicle is in motion on icy-covered highways for a long distance, as a result of the property of diatomaceous earth powder to cling to the drive-wheel tires.
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