For an extended image, sa would reduce the contrast and degrade the details . 对于一个扩展的图象,球差会减少反衬度并使图象的细节模糊。
From the sa node, electrical impulses spread through the heart muscle to trigger the heartbeat . 从窦房石结出来的电脉冲传播到心脏肌肉触发心脏跳动。
This is particularly important when the conducting tissues between the sa node and the ventricles fail only from time to time . 尤其在窦房结和心房之间的传导组织有时发生故障时这点尤为重要。
An "atrially triggered" pacemaker can pick up the signals directly from the sa node and strengthen them before passing them to the ventricles . 一种“心房触发式心博器”就能从窦房结直接接收这种信号,并在传送到心房去之前还能将这种信号进行放大。
Sa : i will have an absolute straight up , please 山:我来一杯不加冰的纯伏特加。
SAS {略-1} : Scandinavian Airlines System スカンジナビア航空 -----------------------------------------------------------------...
sas meaning: Noun: SAS Usage: UK A specialist regiment of the British army that is trained in commando techniques of warfare and used in clandestine operations (especially against terrorist groups) - S...sas artinya:sassas 뜻:noun, Scandinavian Airlines System, 공군 특수 기동대sas перевод:сас SAS компания SAS Institute ≈ разработчик программного обеспечения, в частности, хранилищ данных