ballast covering

ballast covering怎么读

英式音标：[ˈbæləst ˈkʌvərɪŋ]

美式音标：[ˈbæləst ˈkʌvərɪŋ]

ballast covering的意思释义

释义

道床层；

ballast covering用法及例句

例句参考

Toilet cistern with floor valve - has combined ballast-suction lifter, covering intakes in stand-pipe in bell-shape

Method for covering a ballast bed with foam in a railway track system

The Pressing Technology of the Ballast Covering and Die Design

Ballast room cover for a light fixture

Ballast bypass harness assembly for use with a light emitting diode fluorescent tube replacement bulb

Wind-resistant environmental synthetic cover

COVERING THE SPREAD : BY SPEEDING DISTRIBUTION, CONTROLLING FLOW OR PINPOINTING PLACEMENT, SUPPLIERS STRIVE TO MEET RAILROADS\' BALLA...

Recessed fixture housing having removable ballast box

NOAA Great Lakes Environmental Research Laboratory (GLERL) NOBOB Vessels as Vectors for Noninigeous Species ####Introductions to the...

Behavior of geogrid-reinforced ballast under various levels of fouling