netsh advfirewall firewall add rule name="allow80" dir=in protocol=tcp localport=80 action=allow
Saturday, July 24, 2010
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 |
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