The EU admits that limited production capacity has created bottlenecks.

欧盟承认，有限的生产能力造成了瓶颈。

Ironically, most hydrogen is made using fossil fuels, which has limited its production.

讽刺的是，大多数氢气都是用化石燃料制造的，这限制了它的产量。

Photosynthesizing cells could mostly harness energy at their surfaces, which limited their maximum energy production, which limited their evolutionary avenues somewhat.

光合作用的细胞主要在其细胞表面上利用太阳能，这限制了它们能源产量上限，也在某种程度上限制了它们的进化途径。

These limited production runs also ensured that clients knew their clothes would be relatively unique, compared to the mass-produced designs of seasonal retailers.

与季节性零售商的批量生产设计相比，这些有限的生产运行也确保了客户知道他们的衣服会相对独特。