freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

尺寸公差與表面粗糙度-文庫吧在線文庫

2025-06-28 02:25上一頁面

下一頁面
  

【正文】 期望的表面粗糙度,但是應(yīng)該理解每一種機(jī)械加工方法的諸多特定方面。 Sentenceanalysis: ? 2. Designing for function, interchangeability, quality, and economy requires a careful study of tolerances, surface finishes, processes, materials and equipment. ? 功能、互換性、質(zhì)量和經(jīng)濟(jì)性的設(shè)計(jì)都要求對公差、表面光潔度、工藝、材料和裝備進(jìn)行仔細(xì)研究。 Sentenceanalysis: ? Knowledge of such facts as degree of all roughness obtained by any operation, and the economics of attaining a smoother surface with each o
點(diǎn)擊復(fù)制文檔內(nèi)容
教學(xué)課件相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖鄂ICP備17016276號-1