Concrete that meets such stringent specifications can support 4000 pounds per square inch. That ’ s much higher than the 2500 – 3000 psi that ’ s standard for the industry.
如此調出的混凝土強度，每平方英吋可承受 4,000 磅重量，遠勝於一般建築物每平方英吋 2,500～3,000 磅的規格。