ballast

zavorra

Materiale pesante messo in una nave o in un pallone aerostatico per mantenerne o regolarne l’equilibrio.

In inglese semplice: Heavy material put in a ship or balloon to keep it steady or control its balance.

• The ship carries ballast for balance.
• They added sand as ballast to steady the boat.
• The balloon rose after the pilot released some ballast.

Sinonimi: stabilizing weight

Espressioni comuni: water ballast, carry ballast, release ballast

pietrisco, massicciata

Pietre frantumate poste sotto binari o strade, oppure usate nel calcestruzzo.

In inglese semplice: Rough stones laid under railway tracks or roads, or used in concrete.

• Workers spread ballast under the tracks.
• The ballast helps rainwater drain away.
• Fresh ballast was laid along the repaired railway line.

Sinonimi: track gravel

Espressioni comuni: railway ballast, track ballast, lay ballast

zavorrare

Mettere materiale pesante in una nave o in un altro oggetto per renderlo stabile.

In inglese semplice: To put heavy material in a ship or other object to make it steady.

• They ballast the boat with sand.
• The crew ballasted the ship before departure.
• We need to ballast the vessel evenly.

Come si usa: ballast something with something (They ballasted the boat with bags of sand.)

Sinonimi: weight, stabilize

Espressioni comuni: ballast a ship, ballast with something, ballast a boat