built-in weight

基本解释

It has built-in rechargeable battery and looks cool, light weight, small and compact – it weighs only 90g.
它带有内置式可充电电池，看上去很酷，重量又轻，小巧紧凑——只有90克重。
Hollow structure arms, wrists, welding cable built-in, available in a narrow space welding operations, light weight, compact structure.
采用中空型结构手臂、手腕，焊接电缆内置，可在狭窄空间焊接作业，重量轻便，结构紧凑。
www.qj-robot.com
On the other hand, its finely tuned multitouch interface makes it great for media consumption, and it's instantly usable anywhere because of the built-in 3G and feathery weight.
另一方面，它精细的多点触摸界面极其适合多媒体应用，内置3G和超轻体重能让你随时随地享用。

The army also wants to buy medium-weight armoured vehicles to replace existing equipment, some of it built in the 1960s.
ECONOMIST: Defence procurement
The pound-and-a-half weight of a current iPad sheds the tremendous amount of weight that would normally be needed for a conventional in-flight entertainment system built into the headrest, which on a typical 375-seat 767 could see the iPads pay for themselves within years, if not sooner.
ENGADGET: Qantas to hand out free iPads to all passengers on Boeing 767s, save fuel and our sanity (video)