通常，用户必须上传图片到网站服务器后才能看到缩略图，现在，无需上传图片，开发者就可以很方便地渲染和显示缩略图。
Normally, you would have to upload the image to the site's server before you could see a thumbnail. Now, developers can easily render and display these thumbnail before the file is uploaded.
图片上传成功之后，清单细节页面将显示上传的图片和其他汽车信息。
Following a successful upload, the listing detail page should now show the uploaded images in addition to other vehicle information.
实现上传和显示遂渝线无砟轨道相关图片功能。
The function of uploading and displaying correlated pictures about track of SuiYu railway.
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