smooth bore

同根派生

Design Features and Comprehensive Parameters of Muzzle Brake of High-bore-pressure smooth bore Gun.
高膛壓滑膛炮炮口制退器的設(shè)計(jì)特點(diǎn)及性能評價(jià)指標(biāo)
A rifled musket unit isn’t going to be available unless you research all the right elements that make mass produced rifled barrels (as opposed to smooth bore muskets) possible.
阿凸滑膛槍單位是不會有，除非您研究的所有權(quán)利的內(nèi)容，使大規(guī)模生產(chǎn)螺紋桶（而不是順利口徑步槍）可能的。
Today's diamonds are more likely to embed, not fracture, into the bond and increase the smooth bearing surface of the blade.
今天的鉆石更容易嵌入,不斷裂,入關(guān)鍵表面光滑,增加葉片。
Our torpedo boats bore down on the enemy cruiser.
我方面魚雷艇向敵巡洋艦沖去。
It took him long time to smooth away perplexities.
他花了好長時(shí)間才消除了困惑。