Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/905487465c2f4c2b86d9c818426a6302.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 trial weld是什么意思，trial weld的翻译，trial weld音标、读音、用法和例句_贰靶汉英词典
Both experimental results and trial production demonstrated it operates reliably and smoothly, with high level of weld seam tracking precision. 焊接实验和试生产结果证明，样机运行平稳、可靠，具有很好的跟踪精度。