Platelets are important elements in the blood that are important for blood coagulation (clotting and prevention of bleeding). The normal platelet count ranges between 150,000 and 450,000 per microliter (one-millionth of a liter).
Known as Slauerhoffbrug (Slauerhoff Bridge), it is a tail bridge (kind of a bascule bridge) which can be quickly and efficiently raised by means of hydraulic mechanism to allow frequent passage of water traffic with minimum disruption to the vehicular traffic.uilt in 2000 the bridge is operated automatically almost every hour by two hydraulic cylinders which lift high in the air, a huge 15m by 15m portion of asphalt road. When closed the bridge deck merges seamlessly with the approach roads at both the ends.
Work first began on the Sydney Harbour Bridge in 1924, and it was  opened in March 1932. It took eight years to build the bridge.   Construction began on 28 July 1924 wit â¦ h an official ceremony to  mark the turning of the first sod of earth on the north shore, at  Milsons Point. Sixteen construction workers lost their lives during the bridge's construction.   16 construction workers died during the building of the Sydney Harbour Bridge.