nominal bore

基本解釋

Nominal diameter and flow valves, basically the same breath for full-bore type, Circulation than nominal diameter valve is given. it small called non-reducing type.
流道孔徑與閥門公稱通經(jīng)，基本相同的為全通徑式；流通孔徑比閥門公稱通經(jīng)小的稱為縮徑式。
The parameters studied include the velocity of deflagration flame in smooth bore tube, the influence of nominal ignition energy on flame acceleration and the generation of high flame velocity.
管道直徑和點(diǎn)火能量的變化以及當(dāng)管道內(nèi)有障礙物時(shí)對火焰加速度的影響。