Xaiv cov rwb thaiv tsev tsis kam ntsuas

Rwb thaiv tsev ua tsis tau, tseem hu ua moorgihmeter los yog co meter ', siv rau ntsuas rwb thaiv tsev tsis kam; Mas siv rau cov tshuab hluav taws xob, cov khoom siv hluav taws xob, thiab circuits. Kev ntsuas hluav taws xob ntawm lub rwb thaiv tsev tsis kam xaiv yuav tsum tau xaiv raws li cov qib rwb thaiv tsev ntawm cov khoom siv sim.
(1) Cov cuab yeej hluav taws xob nrog cov ntsuas hluav taws xob hauv qab 500v yuav tsum siv rwb thaiv tsev tsis kam meters ntawm 500v lossis 1000,000.
(2) cov khoom siv hluav taws xob nrog cov hluav taws xob hluav taws xob nrog rau cov rwb thaiv tsev tsis kam nrog ntau ntawm {2}} v.