《汉语拼音方案》自公布以来，在识字教学、推广普通话、普及文化等方面发挥 了积极作用，应在保持其稳定性的原则下，对其过时或不完善之处，如注音字 母、汉字注释、零声母、声韵母表的排列、ｕ字母及隔音、拼写等方面进行修改， 使之更科学和更完善。 Since its publication, Hanyu Pinyin Project has played an active role in literacy teaching, promotion of Putonghua, and popularization of culture. Under the principle of maintaining its stability, the Pinyin Scheme should be applied to its outdated or imperfect places such as phonetic alphabet, Chinese characters , Zero consonants, arrangement of vowel mother table, u letters and noise, spelling, etc. to make it more scientific and more perfect.