For an extended image, sa would reduce the contrast and degrade the details . 對(duì)于一個(gè)擴(kuò)展的圖象,球差會(huì)減少反襯度并使圖象的細(xì)節(jié)模糊。
From the sa node, electrical impulses spread through the heart muscle to trigger the heartbeat . 從竇房石結(jié)出來(lái)的電脈沖傳播到心臟肌肉觸發(fā)心臟跳動(dòng)。
This is particularly important when the conducting tissues between the sa node and the ventricles fail only from time to time . 尤其在竇房結(jié)和心房之間的傳導(dǎo)組織有時(shí)發(fā)生故障時(shí)這點(diǎn)尤為重要。
An "atrially triggered" pacemaker can pick up the signals directly from the sa node and strengthen them before passing them to the ventricles . 一種“心房觸發(fā)式心博器”就能從竇房結(jié)直接接收這種信號(hào),并在傳送到心房去之前還能將這種信號(hào)進(jìn)行放大。
Sa : i will have an absolute straight up , please 山:我來(lái)一杯不加冰的純伏特加。
Sa : ( to jonah ) you called the radion station 山: (對(duì)喬那)你打電話給電臺(tái)了?
Genetic stability of attenuated japanese encephalitis virus sa 2基因穩(wěn)定性研究
Standard twin room la sa hong feng hotel reservation 標(biāo)準(zhǔn)雙人房,拉薩鴻峰賓館預(yù)訂
Sa : what possessed you to give them our address 山:你為什么把我們的地址給他們?
Temporary restricted zones on sa po road , wong tai sin 黃大仙沙浦道臨時(shí)限制區(qū)