Canals, orÃÂ navigations, are human-madeÃÂ channels, orÃÂ artificial waterways, for water conveyance, or to serviceÃÂ water transportvehicles. In most cases, the engineered works will have a series ofÃÂ damsÃÂ andÃÂ locksÃÂ that createÃÂ reservoirsÃÂ of low speed current flow. These reservoirs are referred to asÃÂ slack water levels, often just calledÃÂ levels. A canal is also known as aÃÂ navigationÃÂ when it parallels a river and shares part of its waters and drainage basin, and leverages its resources by building dams and locks to increase and lengthen its stretches of slack water levels while staying in itsÃÂ valley.
圖片編號:
120081100
拍攝者:
Sarfrazalii
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授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | S | 600 x 800 | JPG | 15 | |
標準授權 | M | 1500 x 2000 | JPG | 18 | |
標準授權 | L | 1936 x 2581 | JPG | 20 | |
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進階授權 | WEL | 3000 x 4000 | JPG | 88 | |
進階授權 | PEL | 3000 x 4000 | JPG | 88 | |
進階授權 | UEL | 3000 x 4000 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
PEL
UEL
標準授權 | 360 x 480 px | JPG | 13 點 |
標準授權 | 600 x 800 px | JPG | 15 點 |
標準授權 | 1500 x 2000 px | JPG | 18 點 |
標準授權 | 1936 x 2581 px | JPG | 20 點 |
標準授權 | 2448 x 3264 px | JPG | 22 點 |
標準授權 | 3000 x 4000 px | JPG | 23 點 |
標準授權 | 3462 x 4616 px | TIF | 39 點 |
進階授權 | 3000 x 4000 px | JPG | 88 點 |
進階授權 | 3000 x 4000 px | JPG | 88 點 |
進階授權 | 3000 x 4000 px | JPG | 88 點 |