1. Aiming at the problems of electronic documents falsification, bowdlerizing hostility and so on, this paper introduces an encrypting arithmetic and validating technology based on characteristic getting which creates valid code of the electronic document.
针对web环境下普遍存在的电子公文被伪造和恶意删改等问题，提出一种方便可行的基于全文特征抽取生成验证码的电子公文加密防伪算法与验证技术。
2. I'm bowdlerizing it — just slightly changing one or two words so listeners won't be upset.
我在对它作些改动——只是改换个别字眼，好让听众更容易接受。