1. In Ersu language, perfective prefixes and imperative prefixes have the same forms of some directive prefixes in verbs, in aspect, mood and space categories separately.
尔苏语动词的趋向前缀、已行体前缀和命令式前缀或同形，分属空间范畴、时体范畴和语气范畴。
2. Material quality aspect , heat treatment aspect , grinding handicraft aspect the final article creation specifically for grinding crack has been chosen preventing measure from being a part rationally.
最后文章针对磨削裂纹的产生选择了合理的预防措施即零件材质方面、热处理方面、磨削工艺方面。
3. T here are cases, however, where these two forms are not interchangeable in that the present perfective progressive has also the meanings of continuousness, temporariness and incompleteness .
但是，由于现在完成进行体还带有进行体的持续性、暂时性和未完成性的含义，有时就不可以与现在完成体互换使用。比较。
4. The expert reminds, ministry of Public Health is authorized admissive food health care in 22 kinds of functions, do not have " perfective function " this one.
专家提醒，卫生部审定认可的食品保健22种功能中，并没有“改善性功能”这一项。
5. The aspectual contrast between perfective and imperfective is found in many Slavic languages.
完成体和未完成体之间的对立见于许多斯拉夫语。
