symmetric compression

symmetric compression

A data compression technique that takes about the same amount of time to compress as it does to decompress. Contrast with asymmetric compression.
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The commentary also claims that torsional buckling is an uncommon mode of failure in doubly symmetric compression members without slender elements, except in cases where torsional unbraced lengths are significantly greater than the weak-axis unbraced lengths and in the case of doubly symmetric members.
"Once the space between the liner and the excavation is fully grouted and set, the system develops the strength of a ring under almost symmetric compression," he said.