首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
The author defends V. A. Anuchin's efforts to develop the theory of unity of geography based on Marxist-Leninist philosophy. Konovalenko finds that Americans are closely following the theoretical discussion in Soviet geography because they, too, are supposedly searching for a methodological foundation of a unified geography. He holds that Soviet geography, by developing such a theory on a Marxist basis, can win followers within the ranks of foreign geographers, including Americans. S. V. Kalesnik's article appeared in Izvestiya Vsesoyuznogo Geograficheskogo Obshchestva, 1962, No. 1, pp. 15–25, and was translated in Soviet Geography, September 1962 pp. 3–16).  相似文献   

14.
15.
16.
17.
Abstract

Underwater and shoreline survey and excavation at the Herodian harbor of Sebastos, the port of Caesarea Maritima on the Mediterranean coast of Israel, have provided important new information on Roman harbor design and construction. Local and imported materials were carefully selected and used to construct two immense breakwaters that framed outer and inner basins. Hydraulic concrete was used in a sophisticated manner, and ingenious sluice gates and a subsidiary breakwater provided protection against siltation and storm damage.  相似文献   

18.
19.
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号