阀体对称，尤其是焊接阀体结构，能很好地承受来自管道的应力。
Body symmetry, in particular welded body structure, well under the stress from the pipe.
这种材料不能承受大的应力，也不能耐高温。
This material can not withstand strong stresses, neither can it bear high temperature.
但是，岩层承受的最强地应力究竟是多少，却仍然未知。
But exactly when the rock masses reach the breaking point is a mystery.
但是，岩层承受的最强地应力究竟是多少，却仍然未知。
But exactly when the rock masses reach the breaking point is a mystery.
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