grayback

n.

灰色动物（如：灰鲸，黑头鸦，斑背潜鸭等）；

Grayback Glades Research Natural Area
USS Grayback: Secret submarine landing boat
Geologic map of the Grayback quadrangle, Pinal County, Arizona
The Grayback Pluton: Magmatism in a Jurassic Back-Arc Environment, Klamath Mountains, Oregon
Magma mixing and mingling in the Grayback pluton, Klamath Mountains, Oregon
Turning Points in the U. S. Civil War: Views from the Grayback Market
Turning Points during the U.S. Civil War: Views from the Grayback Market
EVALUATING TILT AT THE GRAYBACK FAULT BLOCK, AZ USING GRAIN SIZE AND GEOCHEMICAL ANALYSES OF THE TEA CUP PLUTON
Paleomagnetic and structural evidence for oblique slip in a fault-related fold, Grayback monocline, Colorado
Confirmation of a low pre-extensional geothermal gradient in the Grayback normal fault block, Arizona: Structural and AHe thermochro...