flat punch 中文意思是什麼
flat punch
解釋
平沖頭-
With the standardized workshop occupied 11600m2 and 630t hydraulic presses, 315t two axle punch presses, 250 sets of large, middle, small equipments, the company has the whole series production line. main equipments include cut - board machine, incurvate machine, opened incline pressure machine, drill attack machine, auto - moving hang machine, various kinds of moulding plastic machine, lathe, planer, drilling machine, horizontal axis rectangle platform flat grinder, universale lifting platform milling machine, eccentricity axis punching machine, liquid pressure derrick car, etc
主要設備有： 630噸液壓機315噸雙軸沖壓機250噸沖壓機等大型沖壓機床，剪板機折彎機鉆攻兩用機自動走軌起吊機各式型號注塑機各式車床刨床鉆床臥軸矩臺平面磨床萬能升降臺銑床偏心軸沖床液壓起重車等大中小設備386多臺套，形成具有自動沖壓步進的生產線。 -
In sheet metal, drawing is a process of forming flat sheet metal into hollow shapes by means of a punch that causes the metal to flow into the die cavity
在鈑金中，制圖的過程，就是將一個平鈑金沖壓成凹狀，通過一個沖孔使金屬流入型腔。 -
A natural sounding headphone should have a gentle hump in the bass ( about 3 or 4 db ) between 40hz and 500hz. ( this compensates for the fact that headphones don ' t give you the physical punch that the sound from a speaker has ; so a slight compensation of increased bass is needed for natural sound. ) headphones also need to be rolled off in the highs to compensate for the drivers being so close to the ear ; a gently sloping flat line from 1khz to about 8 - 10db down at 20khz is about right
這大致是說，耳機頻響曲線在低頻40 - 500赫茲間有個小的隆起是正常的，因為耳機不能象喇叭那樣給人真實的低頻沖擊力，所以在這個低頻段加強一些，聲音反而自然逼真些.另外，為避免太刺激耳朵，耳機在1000赫茲起到耳朵聽力的極限20000赫茲間應該有衰減，到2萬赫茲處比平均輸出低8 - 10分貝是正常現象 -
Based on the company s policy - quality first, customer foremost, better for best, the company has introduced in foreign autobody manufacturing technologies and equipment full sets of punch - pressing dies, welding - installation fixtures and checking fixtures. with remarkable advantages in manufacturing technique, technology capacity and international practice - compliant management, it comes out with autobody assemblies for new toyota hiace series high medium flat roof vans 15 seats and 12 seats as well as stamping parts
公司立足於質量第一永不滿足，用戶至上追求卓越的辦廠方針，先後引進國外汽車車身的製造技術和全套沖壓模具焊裝夾具檢具。生產國內具有領先水平豐田新款海獅高頂中頂平頂， 15座12座車身總成或部壓散件。
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