平行于主轴的平行光线经折射(或反射)后的相交点必在主轴上，而在主轴上的焦点叫做主焦点。 主焦点也是天文望远镜的物镜直接成像的焦点位置。
∠the principal focus主焦点 ∠The problem of pollution became the focus of public attention.污染问题成了公众关注的焦点。
基于474个网页-相关网页
... ford focus福特福克斯（美国汽车公司） prime focus主焦点 focus strategy集中化战略；焦点策略；集中战略 ...
基于113个网页-相关网页
... median-plane focusing 中平面内聚集 meridional focus 主焦点 micro isoelectric focusing 微量等电聚焦 ...
基于16个网页-相关网页
焦距：镜头中心与其主焦点的距离。
Focal length: The distance between the centre of a lens and its principal focus.
这两个项目的主焦点是为生产车间装备强大而可靠的驱动，提升轧钢厂的生产力和可用性。
The principal focus of both projects is to equip the production facilities with powerful and reliable drives that will increase the productivity and availability of the rolling mills.
在构建阶段，技术风险大大降低，此时的主焦点问题是“我们在此阶段结束之前能够完成所有的必要任务吗？”
By the Construction phase, with the technical risks effectively mitigated, the principal focus turns to the question "Can we get all the work done by the end of the phase?"
应用推荐