unfurl the sail
把帆展开
以上为机器翻译结果，长、整句建议使用 人工翻译 。
If those tests are successful, the eventual plan is to fly an e-sail craft that will unfurl a circular array of up to 100 20-kilometer-long conductive filaments only 25 microns thick, Janhunen says.
如果这些测试将获得成功，最终的计划将是发射电子帆飞船，可展开多大100个20千米长25微米厚的导电纤维。
youdao
Current plans call for the probe to unfurl a solar sail 400 metres across shortly after launch.
ECONOMIST: Rockets are not the only way to travel through outer space
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