That unblinkingly vivid Japanese sun seems the blazing focus of the glassy ocean's immeasurable burning-glass.

那一眨不眨的生机勃勃的太阳似乎就是这玻璃般大洋的巨大燃烧的焦点。

Then with his lens he tested the hinges, but they were of solid iron, built firmly into the massive masonry.

随后，他用检查了合叶，可是合叶是铁制的，牢牢地嵌在坚硬的石上。

Say we have a lens that has a spherical face on both sides, known as a convex lens.

假设我们有一个具有球面的头 两侧，。

You might notice that the image is upside down, which will always be the case for convex lenses.

您可能已经注意到图像是上下颠倒的，总是如此。

As a result, the magnetic lenses act as convex or converging lenses, focusing all the electrons down to a focal point.

因此， 磁充当或聚光，将所有电子聚焦到一个焦点。

While Galileo used a concave lens for his eyepiece, the standard refracting telescope uses a convex, converging lens for both the objective lens and the eyepiece.

伽利略的目使用凹，而标准折射望远的物和目都使用。

This is made possible through something called a lenticular lens – a corrugated sheet in which each ridge is made up of a convex – or outward-curving – lens.

这是通过一种叫做柱状的东西实现的，柱状是一种波纹状的薄板，其每个起处都由（即向外弯曲的）组成。