Is the mask convex on one side or two?

面具一面凸还两面凸？

The mask is convex only on one side.

面具只有一面凸的。

The nose is upturned, and the eyes slightly convex.

雕刻的动物鼻头上翘，眼睛微凸。

Now more than half full, we say its shape is “gibbous”, which means swollen or convex.

现在月亮已经超过了半满，我们就称个形状为“凸月”，英文中“gibbous”的意思肿起或凸起的意思。

The bronze plaque is slightly convex.

弧形铜胎略微拱起。

Most mammal eyes have a structure called a lens—a transparent, convex structure whose shape refracts light to enable sight.

多数哺乳动物的眼睛都有一种晶状体结构——一种透、凸起的结构，可折射光线成像。

I imagined it was flatter and more circular, but this is convex, with a design only on one side.

我想象的它更平面，更圆, 但现在凸, 设计只出现在一边。

Glass mirrors were the latest cutting edge technology in the middle ages, but the convex mirror was the only shape possible.

玻璃镜子中世纪最新的尖端技术，但凸面镜唯一可能的形状。

And this is a classical example of convex shapes.

凸形的经典示例。

As a result, the magnetic lenses act as convex or converging lenses.

因此，磁透镜起到凸透镜或会聚透镜的作用。

It did have kind of these convex mirrors.

它确实有种凸面镜。

Is the Latin word for lentil and it is indeed true that the shape of by convex lenses.

拉丁语中表示扁豆的单词，确实，凸透镜的形状类似于扁豆。

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镜头 两侧，称为凸透镜。

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上下颠倒的，凸透镜总如此。

A flatter, convex objective lens reduced chromatic aberration, gave a longer focal length and, for a fixed eyepiece, greater magnification.

一个更平坦的凸透物镜可以减少色差，提供更长的焦距， 并且对于固定的眼镜片来说，能获得更大的放大倍率。

Their convex bulge we see on several species covers a moist cavity that protects its respiratory resistance from the dryness of the outside world.

我们能在其中几种身上发现隆起里面个潮湿的体腔保护其呼吸阻力不受外面世界的干燥影响。

Let's name this set of all possible sums D. Your task is to prove that D is also a convex set.

让我们将所有可能的和组成的集合命名为D。你的任务证D也一个凸集。

Unfold that sheet, and there's a pattern of lines, each of which represents a concave valley fold or a convex mountain fold.

展开那张纸，有一种线条图案，每条线代表一个凹谷折或凸山折。

But something like the symbol pi is not  convex.

但像π样的符号就不凸的。

None of the letters in the word " convex" are themselves convex.

单词“convex”中的字母都不具备凸性。