从直升飞机上灌注海水以试图冷却核电站的计划曾一度被否决，因为核电站上空的空气中的辐射等级十分危险。
Attempts to cool the site by dumping sea water from helicopters had to be aborted at one stage because of dangerous radiation levels in the air above the plant.
多项临床试验证明，核素心肌灌注显像在冠心病诊断、危险度分层、预后判断、病人处理方案等方面具有突出的作用和优越的价值。
Many clinical trials have proven nuclear myocardial perfusion imaging may take a key role in diagnoses, risk stratification and management of coronary artery disease.
结果不同印模材料采印及灌注的普通石膏模型，人造石和超硬石膏模型，其表面光滑度及硬度均有所差异。
Results There had difference on the surface smoothness and hardness of models made with different impression materials and different model materials.
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