For them, the mask is concave and rotates in one direction.

对他们来说，面具是凹陷的，并且朝一方向旋转。

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

红细胞很小，被称为红细胞的凹盘状细胞。

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

凹面镜将阳光引导到中管，对油溶液进行加热。

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

，凹。

You built that big concave glass tower.

你建了座凹面的大玻璃楼。

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，胸部凹陷，肩膀圆润，双臂无力地垂，双脚分，巴向前。

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

他们找到一凹形的树枝或树桩，并在那里产卵。

There's a concave deformity in the right atrium.

右心房有凹陷形变。

He and his comrade-in-arms worked at a concave concealment.

他与他的战友们在一处凹的隐蔽处工作。

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.牛顿性的利用这光，让凹透镜产生了一图像。

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降和上升， 一系列凹曲线。

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

但这可以通过使用 凹透镜作为目镜来纠正，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.

它源于画廊的凹形和岩石的传导能力。

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

展那张纸，有一种线条图案，每条线代表一凹谷折或凸山折。

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.

窄光源从凹面镜反射到照相机，金属刀片阻挡部分聚焦光。

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.

发散透镜具有凹面形状，与聚透镜相反，导致光线从透镜轴发散。

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.

间隔透镜具有凹面形状并反射成组的透镜，导致光线从透镜轴散射。

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.

伽利略的目镜使用凹透镜，而标准折射望远镜的物镜和目镜都使用凸透镜。

They plunged into the concave field on the other side of which rose the village-the field wherein Jude had received a thrashing from the farmer many years earlier.

他们跳进了凹陷的田野，在凹陷的田野的另一边耸立着村庄——多年前裘德是在这里挨了农夫一顿痛打的。

In the middle of the concave side, there is a groove twelve inches deep, in which the extremities of the axle are lodged, and turned round as there is occasion.

凹面中部有一槽，深十二寸，轴端安于槽内，随时可回转。