农�在精选谷种时，常用一种叫“风车”的农具进行分选．在同一风力作用下，谷种和瘪谷空壳都从洞口水平飞出，结果谷种和瘪谷落地点不同，自然分开 Sketch Coloring Page

农�在精选谷种时，常用一种叫“风车”的农具进行分选．在同一风力作用下，谷种和瘪谷空壳都从洞口水平飞出，结果谷种和瘪谷落地点不同，自然分开 Template

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tomski农�在精选谷种时，常用一种叫“风车”的农具进行分选．在同一风力作用下，谷种和瘪谷空壳都从洞口水平飞出，结果谷种和瘪谷落地点不同，自然分开 coloring

农�在精选谷种时，常用一种叫“风车”的农具进行分选．在同一风力作用下，谷种和瘪谷空壳都从洞口水平飞出，结果谷种和瘪谷落地点不同，自然分开 sketch template

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