Lead is a soft and ductile weak metal, toxic and heavy metal. The original color of lead is bluish white, and its surface is quickly covered with a layer of dark gray oxide in the air. It can be used in construction, lead-acid rechargeable batteries, warheads, artillery shells, welding materials, fishing tools, fishing tools, radiation-proof materials, trophies and some alloys, such as lead-tin alloys for electronic welding. Lead is a metal element, which can be used as a material for resisting sulfuric acid corrosion, gamma rays and batteries. Its alloy can be used as type, bearing, cable sheath, etc., and can also be used as shot put for sports equipment.
PowerBuilder is a computer language.
PowerBuilder is a new and rapid development tool developed by Sybase Company in the United States. It is an integrated development tool based on Windows3.x, Windows95 and WindowsNT under the client or server structure. It contains an intuitive graphical interface and an extensible object-oriented programming language, PowerScript, which provides an interface with large-scale databases that are currently popular, and is connected with stand-alone databases through ODBC. PowerBuilder provides support for most popular relational database management systems at present. Because SQL, an international standard database query language, is generally used for accessing databases in PowerBuilder applications, applications developed with PowerBuilder can be used on different background database management systems without modification or with only a few modifications. The application developed with PowerBuilder is independent of the database management system on the server.
Pb = person best (personal best) in sports track and field events.
PB is the abbreviation of Prison Break, the most popular American TV series in 2006. It is translated into Prison Break in Chinese, and now it means cracking.