Nta:
Raws li cov khoom siv dav dav uas nws lub zeem muag tau txhawb nqa raws li lub platform ntawm SM471 kev kub ceev nti tua thiab nws cov nti kev tso kawm ceev yog qhov siab tshaj plaws ntawm tib chav kawm cov khoom siv, SM481 paub txog qhov kev tso kawm ceev ntawm 38,000 CPH, qhov siab tshaj plaws ntawm cov tib chav kawm cov khoom siv placers, los ntawm kev siv lub taub hau nrog ib lub gantry thiab kaum spindles nrog rau lub zeem muag tshiab ya thiab los ntawm kev ua kom tiav qhov kev tuaj tos thiab kev tso kawm.
