Created quite by accident, the energetic light and winds from these massive newborn stars burn away accumulations of dark dust and cool gas in a slow but persistent manner.
Be sure to keep battery contact parts clean. Dust accumulations between batteries and battery terminals may result in imperfect contacts, and may even prevent the unit from operating.
Area not classified as zone 2in which combustible dust clouds may occur infrequently and persist for only a short period, or in which accumulations or layers of combustible dust may present under abnormal conditions and give rise to combustible mixtures of dust in air.
In early Permian period,the epicontinental sea of North China Platform receded conti-nously to the south,thus the-coal accumulations of continental delta facies are generated inthe southeast of North China Platform.
The salt - related structures had exerted important influence on the hydrocarbon migration and accumulations.
Finance industry is the joint outcome of historical accumulations and objective demands, formed in market economy.
Not all accumulations of hydrocarbons are necessarily the result of hydrodynamics.
Everything in her person was round and replete, though without those accumulations which suggest heaviness.
Thick accumulations of peat can form only if the swamp basin slowly subsides.
Poultry house cleaning equipment and vehicles usually have accumulations of litter and feces.