1.三角肌（覆盖于肩关节）the thick triangle-shaped muscles that cover the shoulder joints
The upper trapezius in the back and the anterior deltoids at the front of the shoulders lift the arms.
背部的上斜方肌和肩膀前侧的前三角肌上提手臂。
The anterior deltoids over the front of the shoulder lift the arms.
三角肌（位于肩膀前侧）上提手臂。
The prime muscles worked here are those in the backs of your shoulders: the rear deltoids, external rotators, and rhomboids.
此项练习中主要参与运动的是肩膀后部的肌肉：三角肌后束，内部回旋肌以及菱形肌。
Steve Blake, Right Shoulder: His deltoids aren't nearly as strong as those that carry the Blazers and can be found on Brandon Roy.
斯蒂夫-布雷克，右肩：他的三角肌似乎还不够那么强壮来带领开拓者，或者在比赛中能够及时的发现布兰登-罗伊。
The middle portions of the deltoids abduct the shoulders, drawing them away from the trunk.
三角肌中部使肩膀外展，将肩膀向远离躯干的方向拉。
Train pectorals, Triceps, Frontal deltoids. Develop upper body, improve body shape.
练习胸大肌，肱三头肌，三角肌前部。发展上肢肌肉，改善形体。
Tissue Culture and Rapid Propagation of Populus deltoids
美洲黑杨的组织培养和快速繁殖
The Rust Resistance of Populus deltoids Cultivars to Melampsora larici-populina
美洲黑杨无性系对杨叶锈病的抗性研究
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