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.
Financed by toll revenue bonds, the bridgeâtunnel was opened on April 15, 1964. It was officially named the Lucius J. Kellam Jr. BridgeâTunnel in August 1987 after one of the civic leaders who had long worked for its development and operation. However, it continues to be best known as the Chesapeake Bay BridgeâTunnel. From 1995 to 1999, at a cost of almost $200 million, the capacity of the above-water portion was increased to four lanes.