在重症监护过程中启动肠外营养的最佳时机和各种能量剂量的疗效，仍然是主要的不确定领域。
The optimal timing for the initiation of parenteral nutrition and the efficacy of various energy doses in critical care remain major areas of uncertainty.
无机砷在单剂量100毫克可以通过减弱能量代谢的进程使人致死。
Inorganic arsenic in a single dose of about 100 milligrams can kill by shutting down energy metabolism.
近年来，科学家们利用大量的粒子加速器或者同步加速器来产生更大的辐射剂量，从而不断地提升X光射线的能量。
In recent years, scientists have been scaling up the power of the X-ray, using massive particle accelerators or synchrotrons to deliver much larger radiation doses.
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