词汇	blowback ring
释义	blowback ring 座压力调节环安全阀
随便看	doubly connected surface doubly connected surfaces doubly connect list doubly constrained gravity model doubly corticated doubly coupled linear programing doubly coupled linear programming doubly-coupled linear programming doubly covering manifold doubly-curved isoparameter doubly curved reflector doubly-curved shell doubly-decoupling mechanism doubly degenerate doubly-degenerate doubly degenerate parabolic equation doubly delicious doubly diagonally dominant matrix doubly differentiable function doubly difficult/hard/important doubly diffuse density doubly-dispersed spectrum Doubly doping doubly enhanced tubes doubly-enhanced tubes