伸展

BACKGROUND: We evaluated the usefulness of the hyomental distance ratio, defined as the ratio of the HMD at the extremeof head extension to that in the neutral position, in predictingdifficult visualization of the larynx in apparently normalpatients, by examining the following preoperative airway predictors,alone and in combination: the modified Mallampati test, HMDin the neutral position, HMD and thyromental distance at theextreme of head extension and HMDR.

背景：我们通过以下单一或混合的术前气道指标评估了颏舌距离比在预测表面上正常的患者喉镜检查时发生困难视野的可靠性：改良Mallampati 试验、头部中立位时的HMD、头部最大伸展位时HMD和甲颏距离以及HMDR.HMDR定义在为头部最大伸展位和中立位时HMD的比值。

This painful condition is caused by a stretching of the iliotibial tissue.

这一痛苦的条件所造成的髂胫伸展组织。

The lithospheric mantle of the Chinese continent, as a whole, is in compressive tectonic regime. 2. The lithosphere of eastern portion of the Chinese continent, being in extensional regime for level-shallow and motion eastward but westward dipping imbricated subduction that formed by high- and lower velocity slabs within lithosphere, suggests that it is in compressional regime in deep levels as a whole.

岩石圈大地水准面异常、水平应力场和P波地震层析等显示，中国东部岩石圈浅层次向东运动，处于相对伸展状态，而深层次高、低速板片向西叠瓦式俯冲形成挤压构造背景，以部分脱耦形式实现不同深度层次之间的调节。

The curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points.

理论上假设的具有完美的柔韧性和不可伸展的、具有相同的密度且截面部分从两个固定的点自由悬挂的曲线。

The concept that each strand was represented by a Super-Helix was presented to solve the nonlinear behavior of hair strands with respect to bending and twisting, based on the Kirchhoff equations for dynamic, inextensible elastic rods.

基于动态的、不可伸展弹性杆的基尔霍夫方程，提出采用超螺旋线表示头发股来解决头发股的弯曲和挠曲的非线性行为。

The structure style of fault zone mainly includes four kinds: compressive structure, extensive structure, inversive structure and strike-slip structure.

断裂带的构造样式主要有挤压构造、伸展构造、反转构造和走滑构造四大类。

After a few days or weeks, you can start using your leg muscles isometrically to push your foot down while your leg is in the stretched position.

把脚从臀部横的张开做同样的动作，数天或数星期之後，你就可以在腿部伸展下用大腿肌肉等量使小腿下弯。

Do the same stretch with the leg out sideways from the hip. After a few days or weeks, you can start using your leg muscles isometrically to push your foot down while your leg is in the stretched position.

把脚从臀部横的张开做同样的动作，数天或数星期之后，你就可以在腿部伸展下用大腿肌肉等量使小腿下弯。

On either side rocks, cliffs, tree-tops, and a steep slope: forward there, the length of the boat, a tamer descent, tree-clad, with hints of pink: and then the jungly flat of the island, dense green, but drawn at the end to a pink tail.

正前方，在船身的范围之内，地形下降的坡度稍稍缓和一些，绿树将土地覆盖。有的地方露出粉红色的岩石。再过去是岛上伸展开来的平坦而浓绿的丛林，最后以一块粉红色的岩石而告终。

The granitic enclaves in the central-facies porphyroblastic lava are subvolcanic rocks with forming age of 134.2±1.9Ma. There is another intrusion of subvolcanic rhyodacitic porphyry with age of 136.0±2.6Ma, in the contact zone of the two volcanic cycles in the western part of the Xiangshan complex. The U-Pb ages of the sub-quartz-monzonite porphyry and lamprophyre are 129.5±2.0Ma and 125.1±3.1Ma, respectively. This suggests that the extension in the Xiangshan region, began in K〓, was week, and earlier than that in the coastal region of Zhejiang and Fujian provinces. Extension in K〓 in Xiangshan and neighboring regions was much stronger, forming NE striking large red-downfaulted-basins.

相山中心相碎斑熔岩中的花岗质包体属次火山岩，其成岩年龄为134.2±1.9Ma，在相山西部两火山旋回的界面之间，存在另一类次火山岩的侵位，其成岩年龄为136.0±2.6Ma，岩性为次流纹英安斑岩；次石英二长斑岩及煌斑岩的成岩年龄分别为129.5±2.0Ma及125.1±3.1Ma，说明相山地区的伸展、裂解作用明显早于浙、闽沿海，在K〓就开始了，但规模并不是很大；而K〓时期的拉张作用在相山及其邻区表现的更为强烈，形成了大面积的呈北东向展布的红色断陷盆地。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。