性选择的

To investigate the choice of anesthesia means of laryngeal microdebrider removal of juvenile-onset recurrent respiratory papillomas.

探讨内窥镜辅助支撑喉镜下应用喉吸切钻切除青少年型复发性呼吸道乳头状瘤的麻醉方式的选择。

PAA/PVA IPN hydrogels were prepared by a sequential method by which acrylic acid firstly. polymerizes and cross-links in PVA/water solution with UV irradiation,then PVA physical cross-linked hydrogels are formed in cross-linked PAA networksby freezing-thawing. The orthogonal test design method was used to optimize theexperimental conditions based on the mechanical and swelling properties of thehydrogels. The effect of the PAA and crosslinking agent contents on the microscopicmorphology of the PAA/PVA IPN xerogel was investigated by transmission electronmicroscopy, and on the mechanical properties of the hydogels was studied bymeasurements of mechanical properties.

针对水凝胶强度、生物相容性和刺激响应性的需要，选择了以PVA和PAA为复合水凝胶的基本分子结构；采用顺序IPN方法制备PAA／PVA IPN水凝胶，即将单体丙烯酸与PVA溶液共混，AA经紫外光辐射聚合交联在PVA溶液中形成PAA化学交联网络，再经冰冻—解冻循环过程在PAA网络内形成PVA物理交联网络。

The mortality of strangulating intestine obstruction is higher than Simple intestine obstruction. It is the key to lower mortality by analyzing etiology and electing correct operating occasion.

单纯性肠梗阻发展为绞窄性肠梗阻死亡率会急剧上升，加强病因分析、选择合适的手术时机是降低肠梗阻死亡率的关键。

But with selective breeding and maybe genetic engineering it would be pretty simple to end up with seeds that produce plants with waxier and more reflective leaves.

但是，通过选择培育或基因工程，就会很容易生产出能够产生有更多蜡状物质和更强反射性的叶子的植物种子。

In order to meet the needs of the research work of driving suitability, a 'human body behaviour characteristics test apparatus'is developed. This apparatus can be used to test the simple reaction time, the choice reaction time, the action reaction time, the rapidperception ability and the ability of pursuit. It can display and print test results.

结合驾驶员的驾驶适宜性研究工作，开发研制了&人体行为特性测试仪&，这台仪器具有多项测验功能，能够测试人的简单反应时间、选择反应时间、动作反应时间，快速知觉能力和跟踪能力等多项人体行为特性指标，并且能够显示和打印输出测验结果。

Objective To investigate the effect of different drainage on plasma endotoxin level in patients with extrahepatic bile duct malignant obstruction.

目的 了解不同胆管引流术对恶性梗阻性黄疸患者血浆内毒素水平的影响，为选择合理的引流术式提供依据。

Methods Among patients with colorectal polyps diagnosed with the colonoscope,those were chosen who had sporadic colorectal adenomata through pathologic inspection and were hospitalized in order to excise adenomata with electro┐tomy.

在结肠镜检查发现结直肠息肉的患者中，经过病理检查选择散发性结直肠腺瘤的患者在内镜下用电切除术治疗。

In conclusion, the bisexuals of "Bi the Way" are building their own community and are trying to develop more discourses to enhance their sexual identities.

研究发现，Bi the Way以集体现身行动，选择边缘作为基进抵抗空间，藉以转化污名，由个人层次的情欲主体转化到集体层次的运动主体，形构双性恋论述。

The selection of wood for guitar making in Torres' case was governed by the type of instrument desired and the availability of woods.

木头的选择为吉他做在Torres' 案件由类型仪器渴望和树林的可及性治理了。

Consider the culling , construction ,integration and transformation of these imagos, we can analysis the historical and cultural inheritance of the motif of love in Kakka folks.

通过考察这些意向的营构、选择、组合和变迁，可以探析客家山歌情恋母题的历史文化传承性。

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。