First, select the Observation Plane object and the Front surface.

首先，选择观察飞机对象和前面表面。

youdao

The central meaning Shared by these nouns is. The front surface of the head.

这些名词所共有的中心意思是。头部的前表面。

youdao

A display screen covers most of the front surface of the iPod touch, making it resemble an iPhone.

一块显示屏覆盖了iPod touch前面板的绝大部分，看上去与iPhone非常相似。

youdao

It is a small device that you move around on a flat surface in front of a computer.

VOA: special.2010.08.01

Both devices are circular, with a micro-USB port in back and a slanted front surface on which to rest the phone.

ENGADGET

The screen is huge, taking up 2.78 inches of the touchscreen face (yes, it has that too), which is almost all of the front surface.

ENGADGET: Hands-on with Samsung's slick, sliding glory, the F700

The front sports a glass surface with three capacitive buttons and the back showcases the company's Crystal Reflection process -- an attractive patterned glass-like finish that's a bit of a fingerprint magnet.

ENGADGET: LG Optimus G: hands-on with Korea's latest powerhouse (video) (updated)