可变化

When insoluble collagens were heated in the buffer solution of pH 7.5 at 60℃,both the collagens of 4－months old pigskin and calfskin were 60% solubilized in 1h and 90% in 22h while both the collagens of 1－years old pigskin and cow hide were 30%~40% solubilized which less than former two.

由于动物的年龄不同，胶原的性质变化显著，不溶性胶原在pH7.5、60℃水中加热时，4个月龄猪皮和幼牛皮在1h可溶化60%，22h可溶化90%，但1年龄猪皮和成牛皮可溶化率减少30%~40%。

This topic draw up the material porterage the machine hand of the development and can grasp to put the object in the space, act vivid and diverse, the commutability artificial carries on the task in the area of the heat and danger, and at any time change the related parameter according to the difference of the workplace and the request of the product processes.

本课题拟开发的物料搬运机械手可在空间抓放物体，动作灵活多样，可代替人工在高温和危险的作业区进行作业，并可根据工件的变化及运动流程的要求随时更改相关参数。

The main environment geological question is: The earth"s crust where the faultage and earthquake are active is unstable; collapse , landslide, mud-rock flow and soil erosion ; The underground karst subsides, seepage question; Basic rock expand, expend and compress soil body, the salt deposit corrode out of shape and groundwater"s corrodent harm; The soft soil question of basin; The soft rock body, cracked rock and the weathering rock are relatively poor stability; High and cold regional highways and railways" frozen soils freeze and melt calamity problem; The around rock of tunnel are unstable because of the coal seam gas, spring water, underground developed area; Project cutting slopes, constructed abandon soil and reservoir, lake"s ecology geological environmental protection issue; Thedangerous shoal of the channel % submerged reef question; The problem of rebuilding channel project and dock etc.; And the problem of unstable ground and groundwater corrosivity during building airport; At the same time, with the international big pathways" implementation and completions of constructions, adjusting the cities and counties" constructions , the crowd occupy changing , the cultivated land distribute changing and the adjustments of structure, will cause local environmental geological issues outstanding; According to multiple statistical analysis , value calculate and integrated appraise result, in the northwest and southwest of Yunnan, the traffic relatively low density, traffic engineering is relatively weak impact on environment, It is the area where a environme

主要的环境地质问题是：活动性断裂、地震带的地壳不稳定；崩塌、滑坡、泥石流及水土流失；地下岩溶塌陷、渗漏问题；基础岩体膨胀、胀缩土体、含盐层侵蚀变形和地下水的腐蚀危害；盆地软土问题；软弱岩体、碎裂、风化岩体稳定性较差；高寒地带公路、铁路建设的冻土冻融灾害问题；煤层瓦斯、涌水、地下采空区等隧道围岩不稳定问题；工程切坡、施工弃土及水库、湖泊生态地质环境保护问题；航道险滩、暗礁问题；渠化工程、码头等库岸再造问题；以及机场建设中的不稳定地基及地下水腐蚀性问题；同时，随着大通道建设的实施和完成，城镇建设的调整、人群居落的变化和耕地分布及结构的调整组合，都可能造成局部环境地质问题的突出等等。经多元统计分析数值计算、综合评价结果，滇西北、滇西南地区交通密度较低，交通工程对环境的影响程度较弱，是环境地质状况好的区域；有主要高原湖泊分布区的，包括昆明、个旧、文山的滇东南区域，环境地质状况较好；大姚、楚雄、篙明及会泽、昭通一镇雄的区域，即滇中北部中生界红层和滇东北岩溶区，环境地质状况中等；而包括保山、德宏、大理、临沧的滇西地区及景东一墨江以东、双柏一石屏一河口以西及东川一寻甸一曲靖地段的滇中一滇东地区，环境地质状况较差。云南国际大通道建设涉及全省区域，如何利用地质环境、实现可持续发展，就必须依赖于国际大通道建设与地质环境之间良性关系的建立。应本着对区域地质环境客观存在的科学认识原则、建设过程中环境效益优先的可持续发展原则、法制性原则、对大通道建设中环境地质的因地制宜及其可防治性原则。并且从组织管理、不同类型大通道、不同环境地质问题类型等方面，提出了对策措施。最后，提出了建立国际大通道建设与环境地质良性关系的宏观建议。

How do handle changes in a system in an maintainable, reusable, extensibility, and ownership?

怎么把握系统的变化，做到可维持，可重用，可扩展，和所有权等？

Its output current can be continuously adjusted from zero to two hundred milliamperes and its stability reaches 1.5×10-5. The variation of the output current is less than 1μA when its operation time is longer than 12h. The modulation of frequency and intensity of optical wave in the laser interferometry can be achieved by the modulated current (100kHz～300kHz) input, whose modulation depth is continuously adjustable from zero to one hundred milliampere.

该电路的直流稳定度高达1.5×10-5，输出电流在0～200mA内连续可调，长时间工作（12h以上）电流变化小于1μA；在直流基础上注入100kHz～300kHz的调制电流，其调制深度为0～100mA连续可调，可实现在激光干涉测量中对光波频率和光波强度的调制。

The paper also has discussed how to realize sustainable economy growth and sustainable social development under the condition of sustainable utilization of energy, and has made a concrete analysis of the "learning by doing" economy growth model under the restraint of energy condition.

建立了能源利用的动态变化方程，在经济增长模型中引入能源约束，讨论如何在保证能源可持续利用的条件下，实现经济的可持续增长及社会的可持续发展。

The mice infected with allantoic fluid could arise syndromes and pathology; SIV could be isolated again and amplified by RT-PCR from the lung.

猪体回归试验，可表现出临床症状和病理变化，从肺脏中可分离到病毒并且RT-PCR也可检测到病毒相应的基因片段。

By the two steps, distract and correct the knee flexion at 0 degree to form knee joint with caput fibulae and lower femur and to fit the lower limb brace which can stahilize the knee joint after the llizarov apparatus is disassembled.

结论膝关节牵伸技术，可有效的矫正先天性胫骨缺如伴发的屈膝畸形，安装带膝关节铰链的牵伸器，可将腓骨头与股骨下端控制于中直位，在长期生理性行走应力的刺激下，腓骨发生了胫骨样的变化，可发育成具有类似膝关节形态的结构，整个患肢由于正常的行走使用而得到良好发育。

Studies on purification in sewer pipe were present, including: wastewater resistance time, fluid state, microorganism, and water quality transformation.

从污水在下水道中的流经时间、流动状态、微生物存在情况、其中水质变化规律等说明下水道的污水净化能力，指出污水在下水道中的流经时间、流动状态，具备了类似自然界中水体净化所必需的条件；下水道中水质变化规律虽与河流净化机理及活性污泥反应动力学模式等不尽相同，但变化客观存在，可将其与污水处理厂视作一个整体。

Variations in CO2, temperature and dust from the Vostok ice core over the past 450,000 yearsSee also: Climate change, Global warming, temperature record, and attribution of recent climate change

东方站冰芯过去450万年二氧化碳，气温以及尘埃的变化。也可参阅：气候变化，全球变暖，温度记录，以及近年气候变化的归因。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。