Columnar or ortholinear keyboards stack the keys in orderly columns, often with rows that are not linear. Proponents claim this makes the keys easier to reach. Whether that’s true will be up to your fingers to decide, but I can say for certain that if you learned to type on a staggered keyboard, switching to a columnar layout is tough. It will take days, possibly weeks before you instinctively hit the C key. The N, M and B keys don’t fare much better.
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续航表现同样是本次升级重点。As2 在空载状态下可连续运行超过 4 小时；在 15 kg 负载下仍可行走超过 13km。其极限速度可达 5m/s，并具备 IP54 防护等级，可在雨水、潮湿等复杂环境中工作。