Kos npe 1.9. Drawbridge - Cov cim qhia ntawm kev tsheb khiav ntawm Lavxias Federation

Drawbridge lossis ferry hla.

Ua ntsia hauv n. n. rau 50-100 m, sab nraud n. p. - rau 150-300 m, lub cim yuav tuaj yeem teeb tsa ntawm qhov sib txawv, tab sis qhov kev deb tau raws li tau teev tseg hauv Table 8.1.1 "Qhov nrug ntawm cov khoom".

Nta:

Daim paib yuav tsum rov ua dua sab nraum qhov kev sib hais haum, thaum daim paib rov qab tau teeb tsa ntawm qhov deb ntawm tsawg kawg 50 m.