Without bees to pollinate them, plants can not reproduce.
如果不能进入这些细胞,HIV就无法繁殖。
Without access to these cells, HIV cannot replicate.
因为你的基因不知道她太老了,无法繁殖。
Because your genes don't know that she's too old to reproduce.
它们是唯一一种在没有宿主细胞的情况下无法繁殖的微生物。
They are the only type of microorganism that cannot reproduce without a host cell.
没有昆虫授粉,许多植物物种(包括各种农作物)便无法繁殖。
Without insect pollination, many plant species-including various crops- cannot reproduce.
长期暴露在阳光下会使细菌无法繁殖,从而导致它们的灭绝。
Long-term exposure to sunlight makes bacteria unable to reproduce, thereby causing their extinction.
如果不感染肝脏,疟原虫则无法繁殖或扩散到血液。
Without infection of the liver, the parasites cannot multiply or spread to the blood.
缺少火的话,有机体无法繁殖,而依赖它们的生物就会受到影响。
Without fire, those organisms can't reproduce- and anything that depends on them will be affected.
如果没有火,这些生物就无法繁殖--任何依赖它们的生物都会受到影响。
Without fire, those organisms can't reproduce- and anything that depends on them will be affected.
从较温暖的水域生活的鱼类能在冷水中存活,但是通常它们无法繁殖后代。
Fish from warmer areas can survive the cold,but they often can't reproduce.
这不仅有助于分发,而且它是发芽过程中的关键步骤,因为没有熊狸的帮助,果实无法繁殖。
That doesn't only help with distribution, but is also a crucial step in the germination process,as the fruit can't reproduce without the binturong's assistance.
在这种情况下,病毒将无法繁殖并抑制免疫系统活性,有助于防止感染发育艾滋病。
In this case, the virus can't multiply and inhibit the activity of immune system, helping to prevent the infection to develop AIDS.
没有昆虫授粉,许多植物物种(包括各种农作物)便无法繁殖。
Without insects to pollinate them, flowering plants-including many food crops- could not reproduce.
由于这些因素,一棵100岁植株可能根本无法繁殖,在植物学意义上说,它算是白活了。
Because of these factors, a century-old plant may not reproduce at all and will, botanically, have lived in vain.
在这种环境中,有害的病原体无法繁殖,这样食物就能长时间保存,同时还会有独特的味道与口感。
In this environment, harmful germs cannot spread- so food lasts longer while preserving unique flavors and consistencies.
这样我们就能对杂草的增殖设下一个限制,它们将无法繁殖自身。
Then we shall set a limit to the propagation of the weeds;they will be unable to reproduce themselves.
国际海事组织要求清除压载水中的生物或至少使其无法繁殖。
The IMO stipulates that organisms in ballast water must be eliminated orat least be incapable of reproducing.
随着时间的推移,这可能会导致肺损伤、视力下降和细胞无法繁殖。
Over time, this could lead to lung damage,poor eyesight and cells not being able to reproduce.
若环境空气的相对湿度在50%以下,绝大多数细菌将无法繁殖。
If the humidity level of the surrounding air is kept below 50%,most bacteria will not survive.
休克捕鱼是最糟糕的,因为即使是那些生存下来的鱼也会变得贫瘠,无法繁殖。
Electric-shock fishing is the worst because even those fish that survive become infertile andcannnot reproduce.
常规取样表明,“普通”细菌在此生态系统中无法繁殖,因此,无需氯等其他清洁剂海水就能保持清洁。
Regular sampling shows that“common” bacteria do not thrive in this ecosystem, thus additional cleansers such as chlorine are not needed.
通过这样做,该基因确保其在下一代中的代表性,即使它所居住的有机体无法繁殖。
By doing this, the gene is ensuring its representation in the next generation,even though the organism it is residing in fails to reproduce.
目前仅存的两头雌性北白犀在肯尼亚被圈养,无法自然繁殖。
Only two females remain in Kenya, both in captivity and unable to reproduce naturally.
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