abstract:The Walk-in-Selection / Balloting Exercise of the Housing and Development Board in Singapore was a convenient and efficient system that enables eligible flat buyers, particularly those in urgent need of accommodation, to book their choice apartment. The Walk-In Selection (WIS) / Balloting Exercise (BE) system was replaced with a computed balloting sales system called the bi-monthly sale exercise from April 2007.
Problemsandcountermeasuresof wireline coringdrillingin "walk" formationin a uranium minein Guangxi are introduced with type selectiontest for diamonddrilling bit.