Frame: Lightweight aluminum frame, made from custom extruded profiles.

框架：轻量级的铝制框架，从定制挤压型材制成。

youdao

Lightweight aluminum frame, fixed armrests, fixed foot care, solid front, pneumatic rear wheel.

铝合金轻型车架，固定扶手，固定脚托，实心前轮，充气后轮。

youdao

Lightweight aluminum frame, fixed ramp handrails, fixed foot care, solid front, pneumatic rear wheel.

铝合金轻型车架，固定斜扶手，固定脚托，实心前轮，充气后轮。

youdao

Designed to be lightweight and cheap to produce, the robotic bicep upgrade uses a (mostly) aluminum frame, battery-powered DC motor, cable drive system, racket braking and thumbstick controller for movement, with a BeagleBone board supervising the electronics that pull it all together.

ENGADGET: UPenn's TitanArm exoskeleton prototype makes light work of heavy lifting (video)