The highest annual volume growth is found in stands of middle density of stocking.
中等密度的白桦林有着最高的年蓄积生长量。
The result showed that optimal density of stocking for muscovy is 7 muscovies a square floor.
结果表明：番鸭的最佳饲养密度是每平方米7只。
The result showed that optimal density of stocking for muscovy is 7 muscovies a square floor.
结果表明：番鸭的最佳饲养密度是每平方米7只。
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