Sentence examples for certain ballast from inspiring English sources
And jettisoning certain ballast is the modus operandi.
The application of concrete slab track in railways has certain advantages compared with conventional ballasted track, but conventional slab track structures generally produce more noise than ballasted track.
As irregular vibration levels progressed, the discrete ballast stones disperse horizontally in certain area.
Slag forms a coarse aggregate used in certain concretes; it is used as a road material and ballast and as a source of available phosphate fertilizer.
In laboratory tests, the stiffness of certain track component can be measured, such as fastener stiffness and ballast stiffness [3, 4].
Until the ballast is packed into the hole, we won't know for certain if the hole is stable or not – so passengers are advised to check before they travel".
Both in black-start and network reconfiguration phases, it is necessary to restore certain loads for balancing the unit output, maintaining the power balance and voltages within an acceptable range, and these are called ballast loads.
