后屈

More than 80% of acenaphthene, fluoranthene, pyrene, benzoanthracene, chrysene, benzofluoranthene, benzopyrene, indeno[1,2,3-cd]pyrene and benzoperylene were removed in down-flowing beds, with little further removal in the following up-flowing beds.

环芳烃中危、荧蒽、芘、苯并蒽、屈、苯并荧蒽、苯并芘、茚并[l，2，3-cd]芘和苯并苝经下行床后，去除率超过80%，上行床去除较少。

Took dephlogisticate pain-killer orally after operation and undertook functional exercise from the first day after operation. Dermal sutured out at the fourteenth day after operation and kept on functional exercise for one week.

术后常规口服消炎镇痛药，第1天开始进行功能锻炼，术后14天拆线，拆线后继续功能锻炼1周，待膝关节屈伸活动度较稳定，不易反弹后方可出院，并继续行功能锻炼。

When eye filled with silicone oil,the change of refractive power tends to be highly hyperopic,the amplitude of accommodation decreased,and the regular IOL power calculation formula is no longer available.

视网膜脱离复位术并硅油填充后眼球屈光发生了高度远视趋向变化，调节幅度明显下降，常规人工晶状体的有效度数计算在硅油填充后将不再适用。

AbstractAIM: To study the changes of refractive status and axial length in chicken form deprivation myopia and its recovery model, to observe the metamorphism of posterior sclera and to lay foundation for investigation of axial myopia pathogenesisMETHODS: Twenty-five newly incubated chicken were selected. Their left eyes were covered with semi-translucent membrane to deprive form perception for 14 days (form-deprivation group), or covered for 11 days followed by uncovered for 3 days. Unoccluded eyes in either group served as control eyes respectively. Retinoscopy and A- ultrasound were conducted to collect the refraction and axial length data.

目的：研究雏鸡形觉剥夺性近视眼及形觉剥夺性近视眼恢复模型的屈光状态和眼轴长度的变化，并观察后极部巩膜的形态学改变，为探讨轴性近视的发病机制打下基矗方法：选用新孵出的普通肉食家鸡25只，采用半透明薄膜眼罩遮盖的方法对左眼进行形觉剥夺14d或遮盖11d后，去遮盖3d。

Results: The posterior margin separation of centrums was more obvious than anterior margin separation in cases with traction from anteflection position of 10 degrees, while the most increases of intervertebral space occurred in cases with traction from neutral position.

颈椎牵引在中立位时对椎间盘的轴向作用最大，前屈位时受力集中在椎体后缘，后伸位转移到后侧小关节。

Body composition, thigh and calf girths of bilateral legs, muscle strength of bilateral knee flexors and extensors were measured before and after 4 and 8 weeks of FESCE.

分别纪录训练前、训练四周后，以及训练八周后的身体组成、双下肢腿围及大腿屈肌与伸肌力矩。

After knee joint replacement, the artificial joint should bear the weight of the body, furthermore, when it is flexing or whirling, it must be flexible and have a good stability. To make a coordinated movement between the joint prosthesis and the retained soft tissue, the geometry of joint prosthesis must match human body.

膝关节置换后，要求患肢达到负重、伸屈及旋转活动，稳定性好，这就要求假体的几何形状要与人体相匹配并使其植入后与人体运动规律相一致，才能使假体与周围保留的软组织协调运动，这一切都得依赖于精确的膝关节假体设计与制造。

The C31 and C33 of the myopia subjects with moderate astigmatism show statistically significant changes after being fitted with both sphere and moderate cylinder trial lenses.

单纯近视者矫正离焦后引起C40的明显变化；近视中度散光者完全矫正屈光不正后呈现C31和C33的显著变化。

If these abnormities were laid according as frequency among 2-6 months,reflex abnormities are knee tendon reflex, palmar grasp reflex,...

其中 2— 6个月组，4个方面的异常项目按出现多少分别排列为：①反射异常：膝反射、手持握反射、巴氏征、非对称性颈肢反射、踝阵挛、坐位平衡反应、踏步反射、交叉伸展反射、紧张性迷路反射、躯干侧弯反射、拥抱反射；②姿势异常：仰卧翻成侧卧头后仰≥ 15°、立位悬垂、平卧颈后空隙≥1cm、俯卧悬垂、侧位悬垂、拉起、紧张性头偏斜、自发姿势异常；③肌张力异常：足背屈角、上肢围颈、手握拳、扶立足跟抬起≥ 3 0°、拇指交叉达掌心、窝角、内收角、跟耳角；④其他异常：头围≤ x -2s、斜视、主动运动减少/异常、听觉异常、视觉异常、眼颤、癫痫。

It was also found that the strength of FF specimen is close to the sumation of the strengths of FC and FS specimens with the same board thickness and screw spacing as FF specimen. As compared the test results with the research findings from Li [2]and Luo [3], It can be concluded that the failure mode of specimen is affected by both the sheathing thickness and the stud thickness. Different from this study, the failure mode of Li's test specimens is torsional-flexural buckling for most cases. The predicted values computed based on the AISI Specification seem to be conservative as compared to the tested values of FF specimens. Therefore, it is suggested that the effective length factor, K, can be taken as 0.5 to determine the wall stud assembly strength.

在三种不同试体组合分析时也发现，具外覆材支撑之立柱与外覆材受压内含支撑之立柱，两者之破坏强度相加，约等於具外覆材之墙体之破坏强度；试验结果与李岱真、罗浩之研究比较后，发现不同厚度之立柱与不同厚度之矽酸钙板之间束制关系明显影响强度之差异，且李岱真之试体破坏模式多为整体扭转-挠曲挫屈破坏，与本研究有较大差异；对於具外覆材之墙体与AISI预测值比较后，AISI规范预测值较保守，因此本研究有效长度系数建议采用0.5。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。