关于centerline的百科

• centerline造句怎么写

• WhenappliedhighfrequencypulsecurrentonCC.billet,thecenterlinepipeandcenterlinecrackinbilletareeliminated,andthecentralsegregationandmiddlecrackareimproved.Steelandothermajorcomponentssuchasmarkingthecenterlineandelevationbenchmarksshouldbecomplete.Fa...
• 2017-10-219345