全文获取类型
收费全文 | 4268篇 |
免费 | 191篇 |
国内免费 | 87篇 |
专业分类
电工技术 | 71篇 |
技术理论 | 1篇 |
综合类 | 645篇 |
化学工业 | 231篇 |
金属工艺 | 51篇 |
机械仪表 | 132篇 |
建筑科学 | 953篇 |
矿业工程 | 53篇 |
能源动力 | 53篇 |
轻工业 | 542篇 |
水利工程 | 33篇 |
石油天然气 | 148篇 |
武器工业 | 6篇 |
无线电 | 142篇 |
一般工业技术 | 288篇 |
冶金工业 | 236篇 |
原子能技术 | 8篇 |
自动化技术 | 953篇 |
出版年
2024年 | 10篇 |
2023年 | 28篇 |
2022年 | 60篇 |
2021年 | 80篇 |
2020年 | 82篇 |
2019年 | 52篇 |
2018年 | 45篇 |
2017年 | 67篇 |
2016年 | 71篇 |
2015年 | 74篇 |
2014年 | 223篇 |
2013年 | 151篇 |
2012年 | 260篇 |
2011年 | 387篇 |
2010年 | 294篇 |
2009年 | 350篇 |
2008年 | 350篇 |
2007年 | 393篇 |
2006年 | 337篇 |
2005年 | 225篇 |
2004年 | 162篇 |
2003年 | 147篇 |
2002年 | 149篇 |
2001年 | 109篇 |
2000年 | 74篇 |
1999年 | 71篇 |
1998年 | 45篇 |
1997年 | 30篇 |
1996年 | 22篇 |
1995年 | 20篇 |
1994年 | 21篇 |
1993年 | 14篇 |
1992年 | 19篇 |
1991年 | 12篇 |
1990年 | 13篇 |
1989年 | 10篇 |
1988年 | 10篇 |
1987年 | 10篇 |
1986年 | 9篇 |
1985年 | 8篇 |
1984年 | 10篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1979年 | 4篇 |
1965年 | 3篇 |
1964年 | 3篇 |
1963年 | 4篇 |
1962年 | 2篇 |
1959年 | 3篇 |
1958年 | 3篇 |
排序方式: 共有4546条查询结果,搜索用时 0 毫秒
1.
Lai-Ying Leong Teck-Soon Hew Keng-Boon Ooi Alain Yee Loong Chong Voon-Hsien Lee 《Information & Management》2021,58(2):103416
This paper examines what influences trust in mobile social commerce environment. Drawing on trust-based acceptance model (i.e. cognitive and emotional trust) and online review features (i.e. profile photo, linguistic style, and reported experience), we examine how these factors affect trust in mobile social commerce. Hypotheses were tested using survey data. The results of our model showed that there are significant influences of profile photo, reported experience, cognitive, and emotional trust towards trust in ms-commerce. This work contributes to existing literature by examining the roles of previous trust in mobile payments and online reviews on trust in mobile social commerce. 相似文献
2.
3.
4.
秦牧作为17年时期重要的散文家之一,其成绩是与他所自觉进行的文体改造分不开的。秦牧的身份和处境使得他的文体改造颇为顺利。秦牧17年文体改造体现在特写强调、抒情风味、辨证色彩三个方面,这与当时的文风密切相关。秦牧的文体改造延续了学者散文的文脉,也印证了文体改造在文学史上的积极意义。 相似文献
5.
6.
本文着重介绍了在可研究性阶段,通过对深圳抽水蓄能电站上水库主坝设计过程中坝型选择的相关因素的分析,确定其大坝类型的过程。 相似文献
7.
This study examines the ways in which therapists function as attachment figures for patients. Patients in long-term psychoanalytic therapy answered questionnaires about their feelings about their therapists and their closest personal relationships. Components of attachment prominent in the therapeutic relationships were looking up to the therapist and feeling the therapist was responsive to emotional needs. Stronger attachment to therapists was associated with greater frequency and duration of therapy, a stronger working alliance, and greater security of the patients' attachment style, as well as with the gender of the patient and therapist. Using attachment theory to understand psychoanalytic relationships emphasizes the unique importance of a therapist to a patient and can offer new perspectives on both therapeutic and attachment processes. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
8.
9.
Ellen Spolsky 《Computers and the Humanities》1993,27(5-6):323-329
Olsen is right to note what can be done with a good theory and the right machine. His particular theory, however, is not transferable to literary studies. If we need a new model, I would suggest that cognitive science can provide a few interesting ones. I have begun to do some work based on David Marr's VISION, in which he hypothesizes two levels of processing within the visual module. My speculation has been on the parallel existence of distinguishable levels of conceptual or language organization which would correspond to the viewer and object centered perspectives Marr describes for vision. I propose to explore the possibility that we may find here the model for the existence of stylistic individualism within overarching historical stylistic generalizations, and even more, that this may be what feminists are searching for when they try to resist being coopted by the masculine language of objectivity.
Ellen Spolsky teaches English literature and literary theory and is the Director of the Lechter Institute for Literary Research at Bar-Ilan University, Israel. Her latest book is Gaps in Nature: Literary Interpretation and the Modular Mind(SUNY Press, 1993). 相似文献
10.
运用马克思主义历史———美学批评方法 ,结合多种批评理论 ,对《太阳之歌》诗集进行全面、系统、多角度的读解 ,肯定了它的艺术成就 ,指出它是现实主义的绚丽花朵 相似文献