多台岸边集装箱桥式起重机共用一台换绳装置，既节省成本又节约能源。
A plurality of quayside container bridge cranes can share one rope-replacing device so as to save the cost and also save the energy.
这种既小又节约能源的设计，最特别的是它那可以多个方向旋转的类似于水晶的球。
The small, energy-efficient design is notable for its crystal ball-like shape which allows it to spin in all directions.
从中可知，该项技术不但可行，而且是处理废弃塑料的首选方案，是既节约能源又利于环境的益事。
It's concluded that this project is not only a feasible way, but also the best way of waste plastics treatment due to its energy-saving and environment-benefit.
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