Earlier research has shown that an inexpensive single dose of an antiretroviral can reduce HIV transmission from mother to child during pregnancy or delivery.

早先的研究已经表明，便宜的单剂量抗逆转病毒疗法可以减少怀孕或分娩期间母亲对婴儿的艾滋病病毒传染。

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Theoretically, without the flattening filter may reduce the treatment delivery time by enhancing the output dose rate.

不使用均整器可以提高加速器的输出剂量率，减少出束时间。

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The influences of target motion on dose homogeneity and conformity degree were theoretically studied under the condition of the active raster-scanning beam delivery system.

从理论上研究了在主动型栅扫描束流配送系统下，靶体运动对靶区剂量均匀性以及重离子治疗适形程度的影响。

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According to Huffnagle, the best source of Lactobacillus and Bifidobacteria probiotics is probably refrigerated supplements, which provide a more concentrated dose and a reliable delivery system.

CNN: Can supplements block benefits of probiotics?

It will also provide a stereotactic radiosurgery service (SRS) which involves the precise delivery of a single fraction of high-dose radiation, usually within the skull.

BBC: South East Wales