Install liftgate opening ( headliner ) upper trim molding.是什么意思？

Install liftgate opening ( headliner ) upper trim molding.

安装升降闸门开口 ( 车顶蓬内衬 ) 上装饰嵌条.

install

vt. 安装，安顿，安置，任命，使…正式就

例句
Another change that Sue made was to install central heating.
休所作的另一个改变是安装中央供暖系统。

opening

n. 开幕，开始，空缺的职位，[商]开盘，交易开始时间，（职位的）空缺；adj. 首次的，开始的；v. （打）开( open的现在分词)，开始，睁开，启动；

例句
The hallowed portals of academe were slowly and grudgingly opening to women.
大学神圣的大门缓慢又勉强地向女性敞开。

headliner

n. （报纸）写标题的记者；

例句
Our headliner got sick, so we canceled the performance.
我们的主力演员病了, 因此我们取消了演出.

upper

adj. 地位较高的，上面的，内地的，地表层的；n. 鞋帮，靴面，兴奋剂，令人兴奋的经历；

例句
Gently raise your upper body to a sitting position, without the aid of your hands.
在不用手扶的前提下，慢慢抬起上身直到坐起。

trim

vt. 修剪，整理，装饰；adj. 整齐的，整洁的，修长的，苗条的；n. 整齐，修剪，健康状态，装束；vi. 削减；

例句
His body is honed and kept in trim with constant exercise.
他经常运动，以锻炼身体和保持身材。

molding

n. 成型，制模，铸造，[建]凹凸形；

例句
They also made around it a rim a handbreadth wide a gold molding on the rim.
桌子的四围各作一掌宽的横梁、横梁上镶著金牙边.