结果表明，煤矸石风化物由于吸附性能低，保肥性差，所以施用化肥时一次用量不宜过大。
The results showed that application rate of each time should not be high because of its low absorbability and low fertility preserving capability.
我每周服用一次安眠药，因为那是会上瘾的药物，但用量却是处方的三倍，这样可以保证我有三到四个小时安稳的睡眠。
I take sleeping tablets only once a week because they are addictive - three times the recommended dose (with my GP's blessing) to ensure three to four hours' solid sleep.
这项发现促使科学家重新思考他们如何应用量子电动力学(QED)理论或者理论本身需要来一次重大的修正。
The finding could mean that physicists need to rethink how they apply the theory of quantum electrodynamics (QED) - or even that the theory itself needs a major overhaul.
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