例句與造句

1. Oxygen free copper sheets and strips
   無氧銅板和帶
2. Adopted ofc oxygen free copper into lead terminals for improvement of tone quality
   采用ofc無酸素銅引腳,改進(jìn)音質(zhì)
3. Oxygen free copper sheets , plates , strips , seamless pipes and tubes , rods , bars and wires for electron devices
   電子設(shè)備用無氧銅薄片板材帶材無縫鋼管桿材棒材和線材
4. In the present dissertation , five commercial metallic materials ? tungsten alloy ( 93w ) , oxygen free copper ( ofc ) , titanium alloy ( tc - t ) , pure aluminum ( al ) and magnesium alloy ( mb2 ) were chosen as the composite system of the flier - plate with graded wave impedance , and their acoustic and mechanical parameters were measured . the thickness of each material was controlled so that flier - plates with a parabolic or cubic wave impedance distribution were designed
   依據(jù)實(shí)現(xiàn)準(zhǔn)等熵壓縮和超高速發(fā)射對梯度飛片體系的理論要求，論文首先在一個(gè)較寬的波阻抗變化范圍內(nèi)，確定鎢合金( 93w ) 、無氧銅( ofc ) 、鈦合金( tc _ 4 ) 、工業(yè)純鋁( al )和鎂合金( mb _ 2 )五種綜合性能良好的金屬和合金材料作為波阻抗梯度飛片的復(fù)合體系，并測量了材料的相關(guān)聲學(xué)和力學(xué)參量。
5. It's difficult to find oxygen free copper in a sentence. 用oxygen free copper造句挺難的