在赤道上升流区，浮游植物的生产力很少有季节性变化。
In the equatorial upwelling zone, there is very little seasonal change in phytoplankton productivity.
该领域的专家表示，到2010年，如果存在相应需求的话，季节性流感疫苗的年生产能力预计会增至10亿剂。
According to experts working in this field, the yearly production capacity for seasonal influenza vaccine is expected to rise to 1 billion doses in 2010, provided corresponding demand exists.
世卫组织还为疫苗生产行业提供季节性疫苗使用的原型菌株和各种材料以确保和证实达到全球疫苗标准。
WHO also provides the vaccine manufacturing industry with prototype strains for the seasonal vaccine as well as materials to ensure and validate that global vaccine standards are met.
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