welding technology gives the low-down
...便利 » Use of electricity, has brought us a variety of convenience 焊接技术交底 » Welding technology gives the low-down 我知道有这么一个地方盛产西瓜，而且西瓜的含糖高 » I know that there was such a place, watermelon and watermelon is rich i...
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welding technology gives the low-down
焊接技术给出了详细的介绍
以上为机器翻译结果，长、整句建议使用 人工翻译 。