We investigated the influence (effect, impact) of temperature on the specific growth rat of yeast in the presence or absence of oxygen.

在有、无氧气存在的情况下，我们测定了培养温度对酵母比生长速率的影响。

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The rates of non-union and avascular necrosis in the presence or absence of fragmentation were compared in both undisplaced and displaced groups.

比较有移位和无移位组有或无骨折片的患者骨不连和缺血性坏死发生率。

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Its influence persists in the presence of family stressors such as the father's absence and maternal anxiety or depression.

若存在家庭压力，如父亲离家以及母亲焦虑或抑郁，严重体罚的影响就会持续下去。

youdao

In fact, the presence or absence of nuclear weapons is immaterial to the issue of compliance: under the treaty both nuclear and conventional missiles with ranges of the SS-23 are banned.

CENTERFORSECURITYPOLICY: Center For Security Policy

Lawyers and experts on internet policy say no court case has ever turned on the presence or absence of such an automatic e-mail footer in America, the most litigious of rich countries.

ECONOMIST: Legal disclaimers

They are also going to look at whether the presence or absence of amyloid plaques, a marker of Alzheimer's in the brain, predicts participants' cognitive status over the next five years.

CNN: STORY HIGHLIGHTS