fatal l dose 致死量 ; 致命剂量
lethal l dose 致死量 ; 致命剂量 ; 致死剂量
local l dose 局部剂量
sublethal l dose 亚致死量
biological l dose 生物学剂量
l dose of toxin 毒素致死限量
local l dose rate 局部剂量率
chemical l dose meter 化学剂量计
annual l dose equivalent limit 年等效剂量极限
Objective: To observe clinical effects of low dose L-thyroxin on the aged critical congestive heart failure (CHF).
目的：探讨小剂量甲状腺素在老年重症心力衰竭(CHF)中的临床疗效。
We used mice as material and studied the effects of poison of chromium and, the effects of protection of different concentrations of L-cysteine. We explored the fittest dose rate too.
本文以小白鼠为材料，研究了铬的毒害作用及不同浓度l -半胱氨酸的保护作用，探求最适剂量比。
CONCLUSION: After high dose of L-dopa intervention, rotation behavior of PD rats improves, and D2 receptor is down-regulated significantly.
结论：大剂量左旋多巴干预能明显改善PD大鼠的旋转行为，并使纹状体多巴胺d2受体明显下调。
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