它们还需要微量的铁，由于海洋中铁的含量非常低，限制了浮游植物大面积的生长。
They also require trace amounts of iron which limits phytoplankton growth in large areas of the ocean because iron concentrations are very low.
由于各方面的原因，建鲤进入大面积推广后，在繁育过程仅开展了强度很小的群体选育，导致了建鲤生长性状的个体差异增大。
Only little intensive mass selection was carried out during the culture after it is extended to all over the country, which result in large differences between individuals.
探讨双侧鼻唇沟轴型带蒂肌皮瓣修复口底大面积缺损后皮瓣生长变化及对供区的影响。
To assess the efficacy of bilateral axial pedicle nasolabial myocutancous flaps which were used to repair the large area of defect in oral floor and the influence of them on donor sites.
主要特点是生长快，产量高，适口性好，适宜于集约化养牛场、鱼场和大面积贮存青、干草等生产。
It's main traits are rapid growth, high yield and good palatability, fit for the intensified cattle farm and fishing farm. It is also fit for production of ensilage and hay.
铝毒害是酸性土壤上作物生长的主要限制因素和森林大面积退化的重要原因。
Aluminum toxicity is a major factor in limiting growth in plants in acid soils. It has been suggested to cause forest decline.
2008年10月至2009年2月，我国北方地区出现大面积的持续干旱，给冬小麦的生长造成了严重的影响。
Drought occurred at a great range of scale in North China between October 2008 and February 2009 on a consistent basis, which impacted the growth of winter wheat seriously.
2008年10月至2009年2月，我国北方地区出现大面积的持续干旱，给冬小麦的生长造成了严重的影响。
Drought occurred at a great range of scale in North China between October 2008 and February 2009 on a consistent basis, which impacted the growth of winter wheat seriously.
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