Steam locomotives were the primary source of power for railway transportation in the 19th and early 20th centuries. These engines generate steam by burning coal or other fuels in a boiler, using the pressure of the steam to drive pistons, which in turn rotate the wheels. The appearance of steam locomotives varies depending on the design and manufacturing period, but they typically have a strong industrial feel and represent the aesthetics of engineering. Steam locomotives played a significant role in the history of railway transportation, but with the development of internal combustion engines and electric locomotives, they have gradually been replaced by more efficient and environmentally friendly power systems. Despite this, steam locomotives are still preserved and displayed in some places as historical relics or tourist attractions.
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授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | XS | 480 x 360 | JPG | 13 | |
標準授權 | S | 800 x 600 | JPG | 15 | |
標準授權 | M | 2000 x 1500 | JPG | 18 | |
標準授權 | L | 2581 x 1936 | JPG | 20 | |
標準授權 | XL | 3265 x 2449 | JPG | 22 | |
標準授權 | MAX | 4032 x 3024 | JPG | 23 | |
標準授權 | TIFF | 5702 x 4277 | TIF | 39 | |
進階授權 | WEL | 4032 x 3024 | JPG | 88 | |
進階授權 | PEL | 4032 x 3024 | JPG | 88 | |
進階授權 | UEL | 4032 x 3024 | JPG | 88 |
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M
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XL
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WEL
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標準授權 | 480 x 360 px | JPG | 13 點 |
標準授權 | 800 x 600 px | JPG | 15 點 |
標準授權 | 2000 x 1500 px | JPG | 18 點 |
標準授權 | 2581 x 1936 px | JPG | 20 點 |
標準授權 | 3265 x 2449 px | JPG | 22 點 |
標準授權 | 4032 x 3024 px | JPG | 23 點 |
標準授權 | 5702 x 4277 px | TIF | 39 點 |
進階授權 | 4032 x 3024 px | JPG | 88 點 |
進階授權 | 4032 x 3024 px | JPG | 88 點 |
進階授權 | 4032 x 3024 px | JPG | 88 點 |