二腹肌

The greatest contractile tension of the masseter, digastric and lateral pterygoid muscles was, similar to the 8-week-old control group, at an interincisal dis- tance of 18mm in open mandible, 6mm protrusion and 2mm retraction of the mandible respectively. The contraction time prolonged gradually according to the Change of jaw position and the extension of muscles.

即嚼肌、二腹肌前腹、翼外肌的最大张力分别位于打开下颌切牙间距离18mm、下颌前伸6mm和下颌后退2mm时；各肌的收缩速度均随下颌位置变化，肌肉被拉伸，而逐渐减慢。

The deeper portion of the gland lies between the anterior border of the sternocleidomastoid and the posterior belly of the digastric muscles.

腮腺的肿瘤预防知识介于胸锁乳突肌的前缘和后部的二腹肌后腹。

Objective To provide anatomical basis for a new style operation using periosteal flap composed of submental artery, anteroventral portion of digastric muscle and submental artery for the renovation of laryngotrachea.

目的 为应用颏下动脉二腹肌前腹为蒂的下颌骨骨膜瓣转位修复喉、气管提供解剖学依据。方法对23例（46侧）头颈部标本的颏下动脉、颏下静脉、二腹肌前腹的相关结构进行观测。

It is feasibe that the periosteal flap composed of submental artery,anteroventral portion of digastric muscle and mandibular periosteum is useful laryngotracheal renovation.

带颏下动脉二腹肌前腹蒂的下颌骨膜瓣有转移范围大、血供丰富、应用灵活等优点。颏下动脉二腹肌前腹为蒂的下颌骨膜瓣修复喉气管具有可行性。

The deeper portion of the gland lies between the anterior border of the sternocleidomastoid and the posterior belly of the digastric muscles.

腮腺的深部介于胸锁乳突肌的前缘和后部的二腹肌后腹。

Results:According to different part of the vessels,there were 2 types:type 1,from the superficial surface of anterior belly of digastric muscle to the surface of inferior margin of mandible to subcutaneous part,accounting for 36%;type 2,from the deep surface of anterior belly of digastric muscle to the deep surface of inferior margin of mandible to s...

结果 ：根据血管走行差异分：1型：主干经二腹肌前腹浅面到下颌骨下缘表面至皮下占 3 6%，2型：主干经二腹肌前腹深面到下颌骨下缘深面至皮下占 64%；1型血管位置表浅，易于分离，且蒂较长，旋转度大，2型相比反之。结论：根据颏下动脉走行设计不同皮瓣的大小来修复面部皮肤组织

The surface electromyogram signal of six unvoiced Chinese vowels are detected from the skin surface of zygomaticus major and anterior belly of the digastric,with AR model coefficients,cepstral coefficients and MFCC coefficients of SEMG signal taken as the original eigenvector.

从颧肌和二腹肌前腹的皮肤表面检测无声发出6个汉语元音的表面肌电信号，以该肌电信号的AR模型系数、倒谱系数和美尔倒谱系数作为原始特征向量。

Methods Ten volunteers with experimental premature contact at the first premolar, the first molar and the second molar were asked to clench in CO and their electromyographic activity of the masseters, anterior temporalis and anterior belly of digastric muscles were measured simultaneously.

测定 10名志愿者在正中牙合；左右两侧下颌第一双尖牙、第一磨牙、第二磨牙实验性早接触状态下，嚼肌、颞肌前束及二腹肌前腹肌电活动的积分值与频谱值。

The contrctile tension of the masster muscles increased and the contraction time shortened, while that of the digastric muscles increased and prolonged.

戴上颌切牙〓平面板打开下颌分开后牙咬〓后，嚼肌收缩张力增加，收缩速度加快；二腹肌前腹收缩张力增加，但收缩速度变慢。

The contractile tension of the masster, digastric and lateral pterygoid muscles varied according to the mandibular position, being greatest when the mandible was opened at an interin- cisal distance of 13mm, protruded 6mm and retrated 1mm.

正常4周龄大鼠嚼肌、二腹肌前腹、翼外肌的最大收缩张力分别位于打开下颌切牙间距离13mm、下颌前伸6mm和下颌后退1mm时。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。