本文研究了敌草快和肾上腺皮质激素对胎鼠动脉管的收缩作用。
The toxic effects of diquat and adrenocortical hormone on ductus arteriosus of rat fetus were studied in this paper.
大体积混凝土在固化过程释放的水化热会产生较大的温度变化和收缩作用。
Releasing steam heat from the mass concrete structures while solidifying leads to produce the temperature change and contraction.
本研究用大鼠游离的胃平滑肌细胞，观察胃动素对胃平滑肌细胞的收缩作用。
The present study was conducted to investigate the contractile effect of motilin on isolated smooth muscle cells of rat stomach.
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