As the density of larvae was reduced, the volume of water in the rearing chamber was decreased by lifting it up, keeping the water line above the bottom of the rearing chamber.
当幼虫的密度是不断减少，在繁育间内的水通过提起圆筒而减少，保持水线在繁育间底部上。
The paper deals with the effect of fertilized eggs density and the larvae culturing density on the hatching and growth of clam, Cyclina sinensis .
本文报道了青蛤受精卵密度对孵化的影响和青蛤幼虫培养密度对生长的影响。
Negative correlation between tannin content and larvae density of X. rusticus was obvious.
单宁含量与青杨脊虎天牛虫口密度之间存在比较明显的负相关性。
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