来自MSN1 个月
From courtship, escaping predators or just for fun, why do stingrays jump out of the water?Rays have large, flat and diamond-shaped bodies, allowing them to glide through the water — and air. But only a select few jump. Dr Tibbetts said eagle rays were known to jump out of the water ...
The Pipeline machine uses PXT photon-counting dual energy x-ray technology for bone and foreign metal detection in poultry, ...
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