roughing-in 中文意思是什麼
roughing-in
解釋
敷設管道-
Improved hand picking technology greatly enhance the mineral processing tate of waste in many dressing plants. the flotation in normal temperature is a big breakthrough in mineral processing technology of scheelite. improved jig sizing applied in roughing and grqvity dressing, and improved tungsten fine deposit recovering technology enhance the recovery of tungsten fine deposit
手選工藝的改進，使各選廠的廢石選出率得到大幅度地提高；常溫浮選是白鎢選礦工藝的重大技術突破；推廣並改進動篩跳汰使這在粗、重選中獲得應用；鎢細泥工藝的改進提高了鎢細泥的回收率。 -
At present, many products developed by the company have won scientific and technological achievement award of tianjin, such as finishing equipment in 500 hot - rolled ribbon steel production line, 750 hot - rolled band steel production line, roughing and finish rolling equipment in 1070universal h section productionline
目前公司開發研製的「 500熱軋窄帶鋼生產線精裝精整設備」 、 「 750熱軋帶鋼生產線」 、 「 1070萬能h型鋼生產線粗精軋設備」等多種產品均已獲得了天津市科技成果獎。 -
Roughing it, about his adventures in the far west, contained some richly funny episodes.
《苦行記》寫的是他在美國極西部的經歷，其中有些十分可笑的插曲。 -
Aluminum products with shing uniform surface was prepared by electrochemical graining process, including alkaline cleaning, 1 % naoh etching, electrochemical roughing in hcl, naoh treating and anodizing in 5 % h2so4 etc
摘要研究了鋁材無掛灰電化學砂化處理工藝。以鹽酸作為電解液的主成分，控制合適的電流密度和電解時間等工藝參數，通過6步處理，得到砂化均勻、粗糙度適中及光亮的砂面。 -
The presented feedrate scheduling characterized by balancing the cutting - loads in die - cavity roughing will be more significant in high speed machining
該策略對切削力載荷要求盡量均勻的模具型腔高速加工更有意義。 -
This paper based on the supply grid of the medium plate plant of chongqing iron & steel has analyzed what causes unexpected harmonic and reactive impact as well as influence on equipments and grid, at the same time, calculate and simulate harmonic and reactive impact produced by the cycloconverter of roughing mill in the plant
本文全面分析了電力諧波和無功沖擊產生的原因以及電力諧波和無功沖擊對供配電系統和用電設備的危害，並針對重鋼中板廠供配電系統，對中板廠粗精軋機變頻裝置產生諧波及無功沖擊進行了計算和研究。
分享友人