ningbo sanhe steel pipe co., ltd. was establ**hed in june 29, 2005. ningbo transportation investment holdings limited holding a large modern steel production enterpr**es. ningbo transportation investm...
请楼主审阅?谢谢?2 methodology 2.?2.1 calibration of non-collimated light 2.1 非准直光?定标 the phase-shift fringe projection method[7–12]has been widely used for 3-d measurement in the past but has not been applie...
from the h**tory of japanese investment in china that three are there wives was reviewed, as well it emphasized their main feature,through to count up over years of trade data;analysized the reason ...