From the pragmatic perspective, preposed theme may convey given information, inferable given information, inferable new information, "given+new" information, contrastive information and new information.
前置主位是通过主位前置这一语用重组手段所形成的有标记主位。
Analysis of reed-base′s front extreme position for four-bar beating-up linkage
四连杆打纬机构的筘座前心位置分析
Preposed and Left-dislocated Themes in Ailing Zhang s Works;
张爱玲小说中前置主位和左移动主位研究(英文)
an application that is currently running and in the foreground.
当前运行的处于主要位置的应用程序。
Place the front wheels in the straight-ahead position.
置前轮于正前方位置。
primary retarder position
主制动位置，主减速器位置，头部制动位置
The main level of a mine.
主坑道矿井的主要位置
Returns the text between the current location and the specified location.
返回当前位置和指定位置之间的文本。
Geographically, the present recovery has been led by North America.
从地理位置来看，北美洲对目前的价格回升起了主导作用。
On the Social Position of the Slaveholders in Antebellum Southern America and Their Social Control Ability;
论内战前美国南部奴隶主群体的社会位置与社会控制力
reel fore-and-aft adjuster
拨禾轮前后位置调节器
moving toward a position ahead.
向前移动到某个位置。
leading-edge flap position indicator
前缘襟翼位置指示器
semitrailing arm
（驱动桥的）前置斜定位臂
The area, location, or position directly before or ahead.
前方直接在前面的地区、部位或位置
The position of storehouse is just opposite to that of the main building.
仓库的位置正好同主楼的位置相对。
front mounted double reduction final drive
前置式双级主减速器
A framed pane of usually curved glass or other transparent shielding located in front of the occupants of a vehicle to protect them from the wind.
挡风玻璃通常弯曲的一种带框的玻璃或其他透明屏蔽物，置于汽车车主位置之前以防风
Be sure to turn off the switch before recharging.
务必在充电前将电源开关置于OFF位置
The first or foremost position.
领头位置第一或最前面的运置