source of exposure中文什么意思

source: n. 1.源頭，水源，源泉。 2.根源，本源；來源。 3 ...
exposure: n. 1.曝露；曝曬；揭發(fā)。 2.【攝影】曝光；膠卷[軟 ...
exposure source: 曝光輻射源
exposure: n. 1.曝露；曝曬；揭發(fā)。 2.【攝影】曝光；膠卷[軟片]張數(shù)；曝光時間。 3.(房屋的)朝向，方位。 4.商品的陳列。 5.【歷史】(嬰兒的)曝棄。 exposure meter 曝光表。 correct exposure 適度曝光。 There are three exposures left on this film. 這個膠卷剩下三張沒拍。
exposure to: 暴露，顯露；曝光; 受到

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Dupont has committed to virtually eliminate the sources of exposure to pfoa from our manufacturing operations and products by 2015
杜邦公司已經(jīng)承諾，到2015年，在我們的制造過程和產(chǎn)品中，從本質(zhì)上消除pfoa的接觸途徑。
According to the serology test that was returned from previous cases who could not be linked to a known source of exposure , 52 per cent were subsequently found to be negative for coronavirus
根據(jù)過往未能確定源頭個案的冠狀病毒血清測試結(jié)果顯示，百分之五十二的個案最終對冠狀病毒呈陰性反應(yīng)。

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