Terms for subject Bridge construction containing class

English	Chinese
cars of particular class	特种车辆
class of allowable stress	容许应力类别
class of collapsibility	温陷等级
class of concrete	混凝土级别
class of connection	连接类别
class of damage	破坏等级
class of earthquake	震级
class of highways	公路等级
class of pavement	路面等级
class of railway	铁路等级
class of ship	船舶等级
class of track	线路等级
class of wind strength	风级
first class	一级
first class highway	一级公路
first class railway	一级铁路
fourth class highway	四级公路
lower strength class	较低强度等级
noise isolation class	噪声等级
second-class	二等
second class highway	二级公路
second class railroad	二级铁路
third class highway	三级公路
third class railway	三级铁路