The effect of BF 3 -methanol treatment on the mass and fine structure of isolated Clivia leaf cuticles at different stages of development has been investigated. BF 3 -methanol cleaves ester linkages in cutin; however, the cuticles are not completely...
people lived in the Chesapeake region at the end of the sixteenth century, some five to seven thousand of them along the Potomac below the Great Falls... JD Rice - The Johns Hopkins University Press 被引量: 8发表: 2009年 Geology of the Chesapeake and Ohio Canal National Historical Park an...
Measuring the rate at which rivers cut into rock and determining the timing of incision are prerequisite to understanding their response to changes in climate and base level. Field mapping and measurement of cosmogenic 10Be in 106 rock samples collected from the Great Falls area of the Potomac Ri...
还没人写过短评呢 我要写书评 Tourists' Guide to the Great Falls of the Potomac, Via the Chesapeake & Ohio Canal的书评 ··· ( 全部0 条 ) 论坛 ··· 在这本书的论坛里发言 + 加入购书单 谁读这本书? ··· 二手市场 ··· 在豆瓣转让 手里有一本闲着? 订阅关于Tourists' Gu...
Autumn view of Great Falls on Potomac river in Virginia near DC featuring beautiful early fall colors on the background,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、
One of the best ways to spread holiday cheer is through the gift of giving. Here are some nearby holiday... Culture Take A Seat With SOFA Grace Chandler, Editor In Chief Take an inside look at the Potomac Falls improv comedy troupe, SOFA. If you’re not going... ...
THE POTOMAC DISASTER AND BYSTANDER MERGING Mackin and Treisman both mention the Potomac, referring to the 1982 air disaster of Air Florida Flight 90 which attempted to get out of Washington National Airport but slammed into the 14th Street Bridge before crashing through ice into the Potomac River....
The Governors Palace Building in Colonial Williamsburg, VirginiaMore similar stock images Bond Falls Sandstone Falls in fog Great Falls on Potomac outside Washington DC Flowing Water Falls over old Rocks Lower Yosemite Falls Rogue Gorge White water in Great Falls National Park Virginia Great...
Landscape of Great Falls Park Along side the Potomac River in Virginia,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招
Falls Church, independent city, northeastVirginia, U.S., just west of Washington, D.C. Its history centres around theFalls Church(Episcopal; 1767–69), which was built on the site of an earlier church erected in 1734 and named for its nearness to theGreat Fallsof thePotomac River. The ...