自行扶正和自我盘旋保证工艺将闲置速度变慢，如果骑手摔下来在各界的功能。
Self-righting and self-circling features ensured that the craft would idle in circles at slow speeds if the rider fell off.
亚茨拉斐尔说着把自行车扶正，前车筐里的各种零碎撒了一地，天使指了指摔坏的经纬仪。
Various things clattered out of its front basket. He pointed to the battered theodolite.
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