● 依照自然界和社會生活中的事物分類,“近取諸身,遠取諸物”,共劃分為九個主題。● 解釋古文字形,追溯字本義和引申義,以幫助讀者更好地理解現代漢語中的字詞。● 收入常用漢字約2500個,依照共同形符、共同聲符或字形相近等原則組成字組,以簡馭繁,以類相從。● 收入常用詞約4000個, 按照其中體現的字義排布於對應的字下面,大多數詞配有精美插圖,生動活潑地詮釋詞義,妙趣橫生。● The dictionary features 9 thematic units categorized by what’s common in nature and daily life, progressing from what is near at hand to understand oneself, to more distant things to comprehend the world.● It explains ancient forms of characters to reveal their original meanings and extended meanings, facilitating a better understanding of modern Chinese.● About 2500 of the most frequently used characters are organized into groups based on the same radicals, phonetic components, or similar forms. Simplify the complex and follow the similar.● About 4000 of the most frequently used words are listed under the corresponding characters, with most of them illustrated, making the learning process enjoyable.
本書是一本立足本科生水平的電動力學教材,主要闡述電磁場理論,分析各個實 驗定律,從中總結出電磁場的普遍規律,建立麥克斯韋方程組和洛倫茲力公式,討論 恆定電磁場問題,說明一些恆定場的基本性質和求解電場、磁場問題的一些基本方法, 討論電磁波的傳播與輻射,介紹一般情況下勢的概念和輻射電磁場的計算方法,最後 將電動力學的參考系引入相對論時空觀,導出電磁場量在不同參考系間的變換,並且 說明相對論力學的基本概念。本書注重把現代物理前沿引入教學,把電動力學問題擴 展到多個前沿的研究領域,如固體物理、天體物理、核物理、計算物理等。 本書涵蓋我國高校物理學專業電動力學課程的基本內容,可作為高等學校物理學 相關專業低年級學生學習電動力學課程的教材或參考書,也可作為電子、材料、通信 等專業高年級學生的教學參考書。This is a Simplified Chinese Translation of the following title published by Cambridge University Press: Introduction to Electrodynamics, Fourth edition, 9781108420419 . Cambridge University Press 2017 This Simplified Chinese Translation for the People’s Republic of China (excluding Hong Kong, Macau and Taiwan) is published by arrangement with the Press Syndicate of the University of Cambridge, Cambridge, United Kingdom. . China Machine Press 2025 This Simplified Chinese Translation is authorized for sale in the People’s Republic of China (excl
《價值評估的本質與法則:一般價值理論導論》(Valuation: Its Nature and Laws. Being An Introduction to the General Theory of Value)是威爾伯·馬歇爾·烏爾班(Wilbur Marshall Urban)於1909年出版的一部經典哲學著作。該書系統地探討了價值的本質、法則以及價值理論的一般框架,試圖從哲學的角度構建一個全面的價值理論體系。本書為該書的第一個中文譯本。該書是英語世界中首次系統探討價值理論的專著,為價值研究奠定了基礎。書稿對價值評價學科的貢獻是多方面的。作者不僅提出了價值評價的哲學框架,還強調了價值評價的主觀性與客觀性,推動了跨學科研究,並為價值評價學科的形成奠定了基礎。