背部的

Members of the gastropod class, finger-size nudibranchs live fully exposed, their gills forming tufts on their backs.

腹足动物类的成员，手指大小的海蛞蝓居住完全的暴光的，它们的鱼鳞板形成毛绒在它们的背部。

Degradation test in vitro was carried out in phosphate buffer solution (0.1M, pH7. 4) at 37 ℃. The buffer solution was changed daily. Degradation test in vivo was implanted the sample to subdermal in adult ICH rat in the scapular area lateral to the dorsal midline. At suitable time the samples were recovered. Molecular weight changes in surface layer and bulk of polymer sample were measured by GPC and weight loss was determined gravimetrically. It was found that the degradation behavior can be regulated by changing the composition of copolymers. The critical compositions from surface to bulk degradation behavior for PGCA, PLCA, PLMCA, PLDCA systems were 15-20, 20-30, 30- 40, 40 of mol percent GA or LA unit in copolymers, respectively. The degradation behavior of PGCA, PLCA, PLMCA, PLDCA systems were compared and analysed. Some factors influencing the degradation character, such as copolymer composition, hydrophobicity, crystallinity and enzyme affect etc. played important role.

体外实验中材料降解环境为37℃，0.1M，pH7.4磷酸缓冲溶液，每天换液，定期取样；体内实验中将聚合物试样埋置于ICH小白鼠背部肩胛骨皮下部位，定期处死小鼠，取样，将体内体外样品进行重量损失及试样内外层分子量变化测定，分析各聚合物试样降解行为特性，实验结果证明，改变共聚物组成，可以调节各聚合体系降解行为特性，对PGCA，PLCA，PLMCA，PLDCA共聚体系，交酯摩尔百分含量15-20％，20-30％，30-40％，40％分别为各体系内降解行为特性由表面降解型向本体降解型过渡的临界转折点，交酯含量较低的聚合物不同程度地表现表面降解行为特性，论文对各共聚体系体内外降解行为作了分析对照，例如共聚物组成对材料降解速度与降解行为的影响；生物体内酶对降解行为的影响；材料亲疏水性，聚合物链段结晶行为及碳酸酯结构对材料降解行为的影响等，得出交酯/环碳酸酯共聚体系降解行为一些共性和规律。

In conclusion, the load of ischial tuberosities could be effectively mitigated in sitting position when the adjustable soothing chair was used; the adjustable mechanism could make the shape of the back-support match more with the curvature of lumbar spine, so that the touching face of waist toward the chair was increased and then the load of back muscle was decreased.

因此使用可调式抒压座椅时，能在坐姿时有效地减少坐骨粗隆所承受的负荷，其中可调式调整机构能使背垫的形状更符贴於腰椎的曲线以增加腰部接触面积进而减少背部肌肉的负担，并且尽量维持腰椎前凸的曲线，减少造成下背痛的发生率。

This workshop will help the yoga practitioners to know about the anatomy of core muscles; safety precautions during the yoga postures and creating awareness in vinyasa movements with bandhas to protect the lower back and enjoy the bouncing energy movements which is happening in each vinyasa krama movements.

这个工作坊可以以帮助瑜伽练习者了解我们核心肌肉组织的解剖知识；在瑜伽体式练习中采取适当的安全预防措施保护自己，使自己在流瑜伽的体式中知道如何正确的运用班达收束法来保护下背部，并享受在流瑜伽的串联体式中通过收束班达增强自己的能量

Seven morphological parameters of hair were observed on the lanugo of a roe deer fetus 10 to 15 days before birth by linear eyepiece micrometer and optical microscope, which include hair density, hair length, medulla length, hair diameter, medulla diameter, scale pattern, and medullar pattern. Results indicate that the development of lanugo expresses temporal and spatial sequence, namely, hair occurs from head to tail.

利用线性目微尺和光学显微镜测量比较了距出生还有10~15d的狍颈部、背部、腹部、臀部、后肢上部的胎毛密度、毛长度、髓质长度、毛细度、髓质细度，并对鳞片和髓质形态进行了观察，发现狍胎毛的发生具有时间和空间上的顺序性，即毛的发生从头颈部向体后扩展。

3The values of AEMG of the contralateral multifidus were higher than ipsilateral during trunk axial rotation;(4) During the trunk flex to 45 and 65 degree position, the AEMG of lumbar multifidus and erector spinae muscles were higher than the other degree and there was significant difference.(Experiment 2)(1)The AEMG of the lumbar multifidus and erector spinae were influenced by load levels, load ways and road conditions during the walking.There was significant interaction between load levels and load ways.

(1) 负荷等级、负荷方式及路面条件对行走过程中腰部竖脊肌和多裂肌AEMG具有显著影响，且负荷等级与负荷方式之间交互作用显著；左手负重行走时腰部竖脊肌AEMG与右手负重时不存在显著差异，但背部负重时的竖脊肌AEMG值明显小于单侧手负重时的AEMG值；(2)多裂肌的AEMG值在不同负重方式下行走时均无显著差异；(3)路面条件对腰部肌肉AEMG值具有显著影响，上楼时腰部竖脊肌、多裂肌的AEMG值显著大于平地和下楼时的AEMG值；(4)单侧手持负荷且当负荷等级达到一定水平时，腰部竖脊肌和多裂肌对侧的AEMG值显著大于同侧。

All relevant studies were methodologically assessed by 2 independent reviewers using criteria developed by the Cochrane Back Review Group and Oxman.

所有相关的研究由2名独立专家采用Cochrane Back Review Group（是全球50个Cochrane中心之一，主要有关颈部及背部疼痛的数据）的实验部分和Oxman的系统综述部分的标准来进行评估。

All relevant studies were methodologically assessed by 2 independent reviewers using criteria developed by the Cochrane Back Review Group and by Oxman.

所有相关的研究由2名独立专家采用Cochrane Back Review Group（是全球50个Cochrane中心之一，主要有关颈部及背部疼痛的数据）的实验部分和Oxman的系统综述部分的标准来进行评估。

Methods N-vinyl pyrrolidone, the hydrophilic monomer, was grafted onto the surface of silicone breast implants by 60Co radiation.The implants were buried in the bilateral subcutaneous layers of the back of rabbits.The unchanged implants were used as the control group.

利用钴60共辐射的方法把亲水性单体 N-乙烯基吡咯烷酮接枝到硅胶乳房假体表面，改变其表面特性后植入兔的背部，以未经改性的正常假体作为对照组，隔一定时间通过组织切片及CT扫描的方法观察假体周围纤维囊壁的形成情况。

Features of male owstoni are: dark green back; bi-coloured ear coverts; white spur on tertials; yellow supercilium reaching the nostril; blue-grey on some median and lesser coverts; rather rounded, short primaries; lack of orange on throat and rump.

owstoni 公鸟的特徵为：暗绿色的背部；双色的耳羽；三级飞羽白色的'刺'；黄色的眉线延伸到鼻孔；部份中覆羽和小覆羽为蓝灰色；有点圆而短的初级飞羽；喉部和腰部没有橘色。

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％。