As a result of being restricted by hardware level and software technique,an automatic-manual method is the primary way to solve factual problem,but the effect was not perfect,especially in allusion to special events,such as "acuate acute angle",etc.
由于受到硬件水平和软件技术的限制,目前主要还是依靠手工与自动相结合的方法来解决一些实际问题,但效果并不理想,尤其是对某些特殊情况,如“尖锐角”现象等。