preoperational stage

,presented its loading and sulfurization and summarizes the experiences of its prophase operation.

介绍QCS-01型耐硫变换催化剂在兖矿集团国宏化工有限责任公司年产500 kt甲醇装置中应用,介绍催化剂的装填及硫化情况,总结前期运行经验。

The Comments on the British Aristocracy by Thinkers in the Early Period of Modern Times;

近代前期思想家对英国贵族制的评论

The Present Study and My Opinion of Chen Duxiu s Earlier and Early Thought Development;

陈独秀早期、前期思想演变研究之现状及我见

Interpretation of Tractatus Logico Philosophicus;

从《逻辑哲学论》解读维特根斯坦前期思想

the circumstances and ideas of the present age.

当前时期的环境和思想。

Qu Qiubai s Early News Activity and Thoughts;

瞿秋白前期新闻实践和新闻思想研究

The Research on Teaching Thought in the Early Period of the Republic of China (1912-1927);

民国前期（1912—1927）教学思想研究

Dives the Earlier Period Esthetic Education Thought by Zhu Guangqian and the Practical Significance;

论朱光潜前期的美育思想及现实意义

On Changes of Ruling Philosophy in Early Han Dynasty and Its Reasons;

论西汉前期统治思想的变化及其原因

About the Variation of Li Qingzhao s Thoughts in Her Ci Poetry between Her Early life and Later;

浅议李清照词前后期思想内容的变化

Traditional Chinese Theory of Translation: Resemblance in Spirit and Transformation of Souls;

中国传统翻译思想:“神化说”(前期)

Li Zehou s pre-contributions to esthetics and limits;

李泽厚前期美学思想的贡献及其局限

On stressing agriculture and business suppression policy in early period of Qing Dynasty and its legal thought

清前期“重农抑商”政策及其法律思想

The Early Periodical Edit and Editing Thoughts of Zhou Zuoren;

周作人前期的期刊编辑活动与编辑思想研究

Paradox in early Creation Society s and New Moon School s literary theory;

倾斜的象牙之塔——前期创造社、前期新月派文艺思想的悖论

The Culture Context and Pre-thought Resource in the Period of Political Thought Arising in Ancient China and Greece;

古代中国与希腊政治思想发生时期的文化背景与前思想资源

On a Transition of Aldo Leopold'Early and Late Opinion and Significance;

论奥尔多·利奥波德前后期的思想转变及意义

Study on Chen Du-xiu s Nationalism Thought in Early Stage(before 1917);

陈独秀早期民族主义思想研究（1917年以前）

Puritanism and the Masquerade:Nathaniel Hawthorne s Early Religious Thoughts;

清教主义与假面剧——谈霍桑创作前期的宗教思想