It's not like sliding around at the concave at the bottom, like a tension.

它并不是在底部的处滑滑去，就像有拉力一样。

Concave mirrors direct the sun to a middle tube to heat an oil solution.

面将阳光引导到中管，对进行加热。

Red blood cells are tiny by concave disc-shaped cells known as erythrocytes.

红细胞很小，被称为红细胞的盘状细胞。

A concave mirror creates an image from this light using a design pioneered in the 17th century, by Sir Isaac Newton.

早在17世纪，艾萨克.牛顿就开创性的利用这个光，让透产生了一个图像。

They find a concave branch or  stump and lay their egg there.

他们找到一个形的树枝或树桩，并在那里产卵。

I would, I'd be going down concave over.

我会，我会下。

You built that big concave glass tower.

你建了座面的大玻璃楼。

There's a concave deformity in the right atrium.

右心房有陷形变。

The flight of a woodpecker is a succession of dips and rises, a series of concave curves.

啄木鸟的飞行是连续的下降和上升， 一系列曲线。

He flapped across the room, chest concave, shoulders rounded, arms hanging limp, feet wide apart, chin thrust forward.

他拍打着穿过房间，胸部陷，肩膀圆润，双臂无力地垂下，双脚分开，下巴向前。

But that can be corrected by using a concave lens for an eyepiece, like Galileo did.

但这可以通过使用 透作为纠正，就像伽利略所做的那样。

It arose from the concave form of the gallery and the conducting power of the rock.

它源于画廊的形和岩石的传导能力。

There was also concave mirrors since antiquity, but especially in the early modern period, they got a little bit better.

自古以就有面，但在早期现代时期，它们的质量有了些许提升。

A narrow source of light is bounced off a concave mirror towards a camera, with a thin metal blade blocking some of the focused light.

窄光源从面反射到照相机，金属刀片阻挡部分聚焦光。

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，每条线代表一个谷折或凸山折。

The flat pectoral muscles were as broad as dinner plates, and the stomach was concave below the great arch of the ribs.

平坦的胸肌宽阔如餐盘，而肋骨形成的巨大弧线下，腹部则呈现陷状。

Four concave mirrors were hung within it, and there was an altar of white marble, surrounded by a chain of magnetic iron.

里面挂着四面面， 还有一个白色大理石的祭坛， 周围环绕着一条磁铁链。

Then he placed heating lamps on one side of the paper and concave mirrors on the other, with the mirrors directed toward the area.

然后，他在纸张的一侧放置加热灯，在另一侧放置面，子对准该区域。

Diverging lenses have a concave shape and do the opposite of a converging lens, causing rays of light to diverge away from the lens’s axis.

发散透呈形，与会聚透的作用相反，使光线远离透的轴线发散。

Diverging lenses have a concave shape and do the opposite of a converging lens, causing rays of light to diverge away from the lens's axis.

间隔透具有面形状并反射成组的透，导致光线从透轴散射开。