Therefore, the proper peck drilling condition for maximum tool life improvement is drilling with a constant OSFL of a tenth of the drill diameter when drilling AISI 1045.是什么意思_Therefore, the proper peck drilling condition for maximum tool life improvement is drilling with a constant OSFL of a tenth of the drill diameter when drilling AISI 1045.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句