These curves are going to be subtle, more subtle than the curvature of the earth.

空间弯曲度也是极其细微，比地球曲率更细微。

Over and over, year after year, Crampton measured to the tiniest degree - to eight decimal places the whorls and arcs and gentle curves of numberless Partula, compiling the results into fastidiously detailed tables.

年复一年，克兰普顿把数不清柄眼蜗牛螺层、弧度以及和缓弯曲度一遍又一遍地测量到最精细程度——到小数点后面8位，把结果编成了许多详详细细表。

You might notice a difference in how you walk and move because there's a change in the curvature of your spine.

你可能注意到自己走路和移方式有所不同，因为脊柱弯曲度发生了变化。

Fingers curl 90 degrees into the screen.

手指向屏幕方向弯曲90度。

The steel was known for its beautiful wave patterns and was said to be able to bend 90 degrees and bend back into place without breaking.

这种钢以其美丽波浪纹而闻名，据说能够弯曲 90 度并弯曲回原位而不断裂。

But what's freaky about it is you get that motion, which people expect, but

但令人惊讶是，它不仅能实现人们预期，还包含一块钛金属能够弯曲正负90度，即总共180度偏转。

Now bend them to a 120-degree angle.

把手臂弯曲120度。

Our hip needs to be able to at least bend to 90 and fully go straight.

我们髋关节至少需要能够弯曲到90度并完全伸直。

You just bend your knees to 90 and you go back and forth.

你只需要将膝盖弯曲到90度，然后前后移。

L-Position: Lift your arms up, keeping your elbows bent at 90 degrees, and feel the muscles in your back working.

- L 型：抬起双臂，保持肘部弯曲 90 度，感觉背部肌肉在工作。

There's a piece of titanium that can bend plus or minus 90 degrees, 180 degree deflection.

有一块可以弯曲±90度，即180度偏转钛金属片。

90-90 Hip Stretch: Sit on the floor with both legs bent at 90 degrees.

3.90-90 臀部伸展：坐在地板上，双腿弯曲 90 度。