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Saturday, July 24, 2010

win7 命令行添加防火墙规则 端口

netsh advfirewall firewall add rule name="allow80" dir=in protocol=tcp localport=80 action=allow

Tuesday, July 13, 2010

Surface Tension

Typical values at 25℃ of petroleum products:

Material

Surface Tension (dynes/cm)

gasoline 26
Kerosene 25-30
Gas oil 25-30
Lubrication fractions 34
Fuel oils 29-32