三角肌对肩部运动至关重要。

The deltoid is crucial for shoulder movement.

三角肌帮助侧向抬起手臂。

The deltoid muscle helps in lifting the arm sideways.

激烈的锻炼后，他感觉三角肌有些拉伤。

He felt a strain in his deltoid after the intense workout.

强化三角肌可以提高你的上半身力量。

Strengthening the deltoid can improve your upper body strength.

三角肌受伤会非常痛苦并限制手臂的活动。

Injuries to the deltoid can be very painful and limit arm movement.

臂骨未见三角肌结节和圆肌结节；

No deltoid and teres tuberosity of arm bone;

渐渐他觉得两臂上的三角肌发酸。

Gradually he felt his deltoids becoming sore.

结果：三角肌和冈下肌与小圆肌之间存在神经界面。

Results:There is a inter nerve plane among deltoid, infraspinatus and teres minor .

这并不要求切开到肌外膜以减低压力，虽然这对于三角肌是需要的和独特的。

Incision of the epimysium was not required to lower the anterior deltoid compartment pressure, which is often necessary and unique to the deltoid.

手肘在结束方面打横褶到身体避免回转的人和三角肌的刺激.

Elbow tucked in close to body to avoid irritation of the rotator and deltoid muscles.