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

红细胞很小，被为红细胞的凹盘状细胞。

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

它并是在底部的凹处滑来滑去，就像有拉力样。

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，油溶液进行加热。

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光，让凹透镜产生图像。

If it has just a slight concave, it helps hold the fibers together.

如果它只是有点凹陷，有助于将纤维固定在起。

So they kind of shape in a sort of concave fashion.

它们呈现出种凹形的形。

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

他们找到凹形的树枝或树桩，并在那里产卵。

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

我会，我会下凹。

I like the asymmetrical sticks and the concave sticks.

我喜欢的摇杆和凹面的摇杆。

You built that big concave glass tower.

你建座凹面的大玻璃楼。

There's a concave deformity in the right atrium.

右心房有凹陷形变。

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， 系列凹曲线。

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，胸部凹陷，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 凹透镜作为目镜来纠正，就像伽利略所做的那样。

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

自古以来就有凹面镜，但在早期现代时期，它们的质量有些许提升。

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.

窄光源从凹面镜反射到照相机，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，有种线条图案，每条线代表凹谷折或凸山折。

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，腹部则呈现凹陷状。

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

里面挂着四面凹面镜， 还有白色大理石的祭坛， 周围环绕着条磁铁链。

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，他在纸张的侧放置加热灯，在另侧放置凹面镜，镜子准该区域。