- sustained arc
- 持续: last; continue; sustain
- 弧: arc bow
- 连续弧: continuous arc
- 连续弧线: continuation bow
- 持续: 1.(延续) last; continue; sustain 地震持续了大约两分钟。 the earthquake continued for about two minutes. 封锁可能要持续一段时间。 the blockade is likely to last for some time.2.(连续地) continued; sustained 生产的持续发展 sustained growth of production; 持续、 稳定、 协调的发展 stable, sustained and coordinated development; 使原油产量持续稳定上升 keep up a steady increase in the output of crude oil
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