心室的定位诊断： ① 右袢（D-loop）：解剖右室位于身体的右侧； ② 左袢（L-loop）：解剖左室位于身体的左侧； A为正常心脏位置，解剖学右心室位于身体右侧，即D-袢。
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control l loop 控制环
Digital l Loop Carrier 数字用户线路倍增器
local l loop 市内线路 ; 地区环路
l loop seal l阀
l loop state 循环状态
powerful l loop 有力的弧圈
Thermal l Loop Control 热环路控制
The L-shaped volume is fixed at either end to two existing brick blocks to form a continuous loop around a courtyard, and slopes down at its corner so as not to block views for residents to its rear.
形状的体量固定在现存两个砖墙体块的端部，围绕院子形成了连续的环状，在它的角部倾斜，以免挡住建筑后面居民住宅的视野。
The world's first closed-loop engine, with thrust of about 7 tons and using liquid oxygen and carbon-hydrogen propellant, was installed in booster L.
世界上第一台可提供7吨推力的闭合回路液氧碳氢推进剂发动机被安装到L助推器上。
Experiments demonstrate that L-band EDFA will achieve high flat gain by employing a gain flat filter based on fiber loop mirror (FLM).
使用光纤环形镜(FLM)作为增益平坦滤波器进行L波段掺铒光纤放大器的增益平坦化实验，实现了高增益值的平坦输出。
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