19世纪末，狗舌草被偶然引入新西兰，像许多入侵的外来物种一样，它很快就变成了一种有害生物。
Ragwort was accidentally introduced to New Zealand in the late nineteenth century and, like so many invading foreign species, quickly became a pest.
但是卢偶然间发现了一种口腔细菌产生的酶可以破坏生物膜。
But Lu stumbled across an enzyme produced by oral bacteria that can break up biofilms.
李女士说创造这种新型材料的想法来自几年前它和一位生物学家的偶然相遇。
Miss Lee said the idea to create the fabric came to her after a chance meeting with a biologist several years ago.
在多年前一次冬令营期间，对哈佛大学法洛参考图书馆和隐花植物标本室的参观中，我偶然发现这个稀奇古怪的生物学+童话的组合。
I stumbled upon this curious blend of biology and fable during a wintry campus visit to Harvard's Farlow Reference Library and Herbarium a few years ago.
麦克·金南博士说，“侵入性外来物种是偶然或故意被引入新地区的非本土物种，其范围涉及从微生物到哺乳动物的多个物种。”
"Invasive alien species are non native species which are accidentally or intentionally introduced into new areas. They range from microbes to mammals," Dr MacKinnon says.
生物物种总是会利用偶然的机会或者是适宜的环境四处散布。
Species have always moved around, taking advantage of happenstance or favorable circumstances.
30年前，生物学家之间流行的看法是：生命的发生源自化学上的偶然。 因为发生的可能性实在太小，在我们观察能力所及的宇宙范围中，不太可能发生第二次。
Thirty years ago the prevailing view among biologists was that life resulted from a chemical fluke so improbable it would be unlikely to have happened twice in the observable universe.
天文学家RoyalMartinRees给出一个公开的赌注：他预言将会有一场生物学灾难-偶然事故或人为故意-到2020将会令至少一百万人丧生(迄今为止，无人接招)。
Astronomer Royal Martin Rees has publicly offered a bet that a biological catastrophe-accidental or intentional-will kill at least one million people by 2020 (so far, no takers).
相反，他们在我们的生物特性中，偶然呈现。
Rather, they emerge from contingent aspects of our biological nature.
生物负载评价和无菌问题也提到了；并且有汇总表描述了偶然试剂，建议的检测和在何阶段进行检测。
Bioburden assessment and sterility issues are also addressed, and a summary table describes adventitious agents, recommended tests, and stages at which to perform testing.
这些新的位置，要靠气候的徐徐变化或新生物的偶然迁入而定。
Such new places will depend on slow changes of climate, or on the occasional immigration of new inhabitants.
一些异常的生物偶然会被冲到岸上来。
医师偶然找到生物体合适的频率。
Physicians very often find the right frequencies for the organism accidently.
另外，营养生物标记可提供较多的客观膳食评估，并有助于鉴别出患长期BP升高和偶然性高血压的最高风险个体患者。
Further, nutritional biomarkers may provide a more objective dietary assessment and help identify individuals at greatest risk for long-term BP increases and incident hypertension.
另外，营养生物标记可提供较多的客观膳食评估，并有助于鉴别出患长期BP升高和偶然性高血压的最高风险个体患者。
Further, nutritional biomarkers may provide a more objective dietary assessment and help identify individuals at greatest risk for long-term BP increases and incident hypertension.
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