Construct the part of the tangent of the deltoid intercepted by the curve. 2 三角星形线的两条互相垂直的切线的交点在哪里?
Construct two mutually orthogonal tangents of the deltoid. Where do they meet? 3 三角星形线的两条互相垂直的法线的交点在哪里?
Applying Too Direct or Too Much Force During the" Catch" Phase of the Stroke- if during the" catch" phase of the stroke, too straight or too strong a force is used, the head of the humerus is rotated into the deltoid muscle an 在划臂的“抓水”阶段,手臂径直抓水或过分用力一如果在划臂的“抓水”阶段,手臂太直或过分用力,肱骨头就会旋进三角肌引起肌腱炎,肩胛骨也会挤压轴转肌而引起肌肉疼痛或组织损伤。
deltoid
[ noun ]
a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm
<noun.body> [ adj ]
triangular or suggesting a capital delta, with a point at the apex
<adj.all>
Deltoid \Del"toid\, a. [Gr. deltoeidh`s delta- shaped; de`lta the name of the letter [Delta] + e'i^dos form: cf. F. delto["i]de. See {Delta}.] 1. Shaped like the Greek [Delta] (delta); delta-shaped; triangular.
{Deltoid leaf} (Bot.), a leaf in the form of a triangle with the stem inserted at the middle of the base.
{Deltoid muscle} (Anat.), a large triangular muscle covering the shoulder joint, which serves to raise the arm directly upward.
2. of or pertaining to the {deltoid muscle}. [PJC]
Deltoid \Del"toid\, n. [see {deltoid}, a.] the {deltoid muscle}. [PJC]
At the height of his career, Dravecky was diagnosed with a malignant tumor and nearly half of his deltoid muscle was removed in October 1988.