The knife had just ruptured the wall of an artery. 刀子剛好割破了動(dòng)脈血管壁。
The endorphins may react with the blood vessel walls, causing them to widen. 內啡肽有可能與血管壁發(fā)生反應，致使血管變寬。
Where a vessel has vertical sides, the pressure on the bottom is equal to the height of the liquid times its density. 如果容器壁垂直，則容器底部承受的壓力等于液體高度乘以液體的密度。
The embrittlement of the wall materials of the reactor was caused by the retained hydrogen and the reactor was damaged. 這些殘留氫使反應器器壁材質(zhì)脆化，造成反應器發(fā)生破壞。
