portable crane的用法和样例：
例句
- This machine is called Bridge Gantry Crane.
这种机器叫路桥门式起重机。 - It provides a theoretical basis for super-low headroom large tonnage overhead traveling crane development.
为柔性化设计理念提供了有力的支持，同时为超低净空大吨位桥式起重机的成功研制奠定了理论基础。
portable crane的相关资料：
临近单词
Portable EEG
portable
portable compression chamber
portable life support system
Portable Wear Metal Analyzer
portable rotation viscometer
portable X- ray imagescope
portable nozzle blast system
portable recorder-receiver
portable language laboratory
portable welding transformer
portable television receiver
