| 摘要 |
An apparatus having at least one rotatably mounted storage container (44, 45), at least two outlet openings (48, 49, 51, 52) in the container from which material within the container may be dispersed as the container rotates such that a discrete amount of material is dispensed from each outlet once per rotation of the container, the openings being located at longitudinally spaced locations in the container, a respective metering means (69, 71) associated with each said opening for collecting the discrete amount of material and for dispersing the discrete amount of material as the container is caused to rotate and a roll of material (31) carried by the apparatus and mounted to pay out material from the roll as the apparatus is transported over a surface whereby the discrete amounts of material dispensed from the container are deposited at spaced locations onto the material from the roll to anchor the material from the roll relative to the surface.
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