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林木发育期观测
释义
林木发育期观测
Encyclopedia
农学
林木发育期观测
释
observation of developmental stages of trees
林木发育期观测
在地形、土壤、栽培水平一致的地段上,选取年龄长势相近、生长健壮的主要树木种类和品种,依据树木外部形态特征,按发育期出现顺序对各发育期出现日期进行观测和记录的活动。
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down-crossing point
downdraft
downdraft gasifier
down draft kiln
Downes law
down garment
downgraded predication
down grinding
down hair
Down Hill
downhill
downhill folding
down-hill method
downhole bums
down hole electric heating
downhole electrodrill
downhole junk
downhole motor
down hole motor drilling
downhole operation
downhole pressurized jet assisted drilling system
downhole throttling method
downhole throttling technology
down-hole tool
Downing Park
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