back surface

基本解釋

The back surface of the loft could even be used as a movie screen.(Link)
甚至閣樓背面可以利用作為電視屏幕。
The SH1294M is designed specifically for stage monitor use, and is equipped with four rubber feet on each back surface for non-skid, stable positioning on either surface.
該SH1294M是專為舞臺監(jiān)聽使用，并與每4個非背面防滑，表面上可以穩(wěn)定定位橡膠腳裝備。
However, the damage modes of the impact surface and the impact back surface for composite laminate 5224/G827 are shear fracture of fiber and substrate and delamination respectively.
而5224/G827層合板沖擊正面在壓縮載荷作用下為纖維基體剪切斷裂失效，沖擊背面則以分層損傷為主。

Then the snow's surface will help to send back sound waves.
It will surface back up in another piece of work or another idea at some point in your life.
在某個時刻，舊點(diǎn)子會以另一種形式重新出現(xiàn),或者另一個想法在會出現(xiàn)在你的生活中。
斯坦福公開課 - Twitter之父Jack.Dorsey演講：好奇和靈感的力量課程節(jié)選
It's firmly adherent to the surface here, it's firmly adherent at the back here, and in between its trying to pull these ends closer together, you can imagine that that's what it's doing, and in fact, that's one of the functions of fibroblasts.
它緊緊地粘附在表面這兒,又緊密的粘附在后面這兒,試著在中間將創(chuàng)口兩端拉緊到一起,你可以想象一下這個場面,事實(shí)上,這只是成纖維細(xì)胞的功能之一
耶魯公開課 - 生物醫(yī)學(xué)工程探索課程節(jié)選

In other words, it occupies roughly the same dimensions, but the taper on the back surface does a compelling job of making this feel thinner.
ENGADGET: Amazon Kindle Fire HD review (7-inch)