尺寸规范：参赛作品须基于正方形模版，长宽为 188.1mm，并在四周包含 φ9.05mm 的圆角。你可以通过 本链接 获得官方尺寸示意图。
Helium is used to pressurize tanks and help push fuel into the engines. Without proper helium flow, the rocket cannot safely fly. Because the upper stage is hard to reach at the launchpad, NASA rolled the stacked rocket back into the Vehicle Assembly Building, the sky-scraping hangar where it was originally put together.，推荐阅读WPS官方版本下载获取更多信息
totalBytes += chunk.byteLength;，详情可参考safew官方下载
Detect unclear structure.，详情可参考WPS下载最新地址