BENT PIPE,R=3-5×DN,昨天接到一个土耳其客人询价,写这 BENT PIPE,R=3-5×DN,90/ 406.4*14.2,到现在都没给客人回信.

BENT PIPE,R=3-5×DN,昨天接到一个土耳其客人询价,写这 BENT PIPE,R=3-5×DN,90/ 406.4*14.2,到现在都没给客人回信. CORE MUST BE API 5L OR A53 GRADE B BENT OR WELDED PIPE , This size of the pipe:5/8copper pipe.3/8copperpipe.1/2copper pipe. bent Pipe Indeed,this especially occurs in typical pipe routing with that closed vertically bent down branch followed by a horizontal line. 20 LSAW API 5 L Grade X 46 3 LPE Coated Steel Line Pipe = 321869 MTR 急 8.Pipe,API 5L 求准确翻译“Seamless Duplex Line Pipe Seamless Duplex Line Pipe =DUPLEX SMLS pipe吗? 管道 规格3“X200L 材质为PIPE XXS SMLS STL API-5L-B 3/8NPT FEMALE-FEMALE PIPE COUPING. PIPE 3 SCHEDULE 80X16是什么意思, 3sched 80 pipe是什么管? ANSYS不收敛FINISH/CLEAR/filname,pipe-soil interaction/PREP7 ET,1,PLANE42ET,2,TARGE169 ET,3,CONTA172keyopt,1,3,1!***keyopt,3,2,4keyopt,3,5,1keyopt,3,9,1keyopt,3,8,2 keyopt,3,12,2 R,1,0.1, rmore,5R,2,0.5, rmore,5!***管道参数csys,1da,4,y!** 该行列式,Dn=.Dn-1 +.Dn-2.请问,按第n行展开,Dn下一阶是Dn-1,怎么还出来个Dn-2啊? 英语翻译CASING IN CARBON STEELCASING IN C.R.A.(MARTENSITICI,DUPLEX,AUSTENITICI,NI-BASED)TUBING IN CARBON STEELTUBING IN C.R.A.(MARTENSITICI,DUPLEX,AUSTENITICI,NI-BASED)CLADDED PIPES & ELBOW LONG RAD.-API 5L X52+INC 825 PIPE IN PIPE (PIP INSULATIO 英语翻译请高手指教：KINDLY PLEASE QUOTE THE R.H.S PIPE PRICE ON F.O.B CONDITIONS中 the R.H.S pipe R+R^2+R^3+R^4+R^5=0.85,R怎么计算