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Sponsored by the Scientific Research Foundation of Harbin Institute of Technology, this dissertation aims to establish microrobot walking in pipe with the diameter of 16mm to 18mm based on abundant of investigation and research work. Different research approaches are implemented, ranging from basis study to unit technology to system. An in-depth research on in-pipe micro locomotive and controller was conducted on the basis of piezoelectric bimorph actuator and the principle of Impact Drive Motion .

本文在&哈尔滨工业大学科学研究基金&支持下，以建立在直径φ16mm～φ18mm的管内行走的微小型机器人及其控制系统为目标，进行了大量的调研和研究工作，采用从基础技术，单元技术到系统集成的研究方法，对基于双压电膜驱动和采用惯性冲击式运动机理的管内移动机器人及其控制系统进行深入的研究。

Five children temperament questionnaires developed by Carey were administered to 2153 children with age ranging from one month to twelve-year old sampled in Shanghai.

选取有代表性的上海市1个月-12岁的儿童，有效例数2153人，采用Carey的EITQ、RITQ、TTS、BSQ、MCTQ进行儿童气质的研究，分别按年龄和性别进行分析。

The dispersed treatment solution containing nano-TiO_2 with size distribution ranging from 30 to(60 nm) and chitosan was prepared and applied to the modification treatment of the tussah silk fiber.

制备了粒径分布为30~60 nm的纳米TiO2壳聚糖分散处理液，用该处理液对柞蚕丝进行改性，研究改性后柞蚕丝的结构与力学性能。

Notes to the Financial Statements For the year ended 30 June 2008 20 TRADE AND OTHER RECEIVABLES The Group 2008 2007 HK$'000 HK$'000 Trade receivables 27,045 18,933 Less: Allowance for doubtful debts –(5,483) 27,045 13,450 Ageing analysis The ageing analysis of trade receivables (net of allowance for doubtful debts) as of the balance sheet date: The Group 2008 2007 HK$'000 HK$'000 Current to 3 months 21,357 12,325 Within 4 to 6 months 3,900 1,125 Over 6 months 1,788 – 27,045 13,450 The Group usually grants credit periods ranging from one to three months.

GOLDEN HARVEST ENTERTAINMENT LIMITED 162 Annual Report 2008 搜索公告牛即可看到网络上最快的个股公告财务报表附注截至二零零八年六月三十日止年度 20 贸易及其他应收款项本集团二零零八年二零零七年千港元千港元应收贸易款项 27，045 18，933 减：呆账拨备–(5，483) 27，045 13，450 账龄分析于结算日之应收贸易款项之账龄分析如下：本集团二零零八年二零零七年千港元千港元即期至三个月 21，357 12，325 四至六个月 3，900 1，125 六个月以上 1，788 – 27，045 13，450 本集团一般给予客户介乎一至三个月之信贷期。

The results indicate that the tin dioxide nanowires have a rutile structure with diameters ranging from 30 to 120 nm and lengths up to several tens of micrometers.

另外，还对生长SnO2纳米线的反应进行了研究与讨论，并探讨了SnO2纳米线一种可能的生长机理。

Three-Roll machines, used for both solid and hollow components, have pressures ranging from 10 to 100 tons and variants include Tube Fin Rolling machines up to 80mm diameter - and a 48-ton Five-Roll machine for rolling large diameter thin-walled tubes.

三辊设备可加工空心和实心的工件，压力范围10吨至100吨。其它设备包括直径可达80毫米的管尾滚丝设备和用于轧辊大直径薄壁管的48吨五辊设备。

It is one Kind of thermometers to measure middle and low temperature on the spot .lt could be used to directly measure temperature of liquid, vapor and gas ranging from -80t ℃ ot 500℃.

应用双金属温度计是一种测量中低温度的现场检测仪表。可以直接测量各种生产过程中的-80℃~+500℃范围内液体、蒸汽和气体介质温度。

But Hedda's pictures--a wonderful account of Chinese daily life--also reflect the diversity of occupations and skills to be found in the capital, ranging from bakery to fruit selling or street-cleaning. Seven decades later, Christina's pictures of Beijing show how some of these occupations have survived through the decades or evolved to meet the needs and tastes of the modern capital.

她拍摄的镜头——从面点师傅、街头卖水果的生意人到街道保洁人——也是那个时代形形色色的职业的写照。70年后的今天，Christina Lionnet的一组照片让我们看到，其中的一些职业在如今的北京城依旧存在，不过，为了适应这个现代化都市的需求，这些职业都或多或少地发生了变化。

But Hedda's pictures--a wonderful account of Chinese daily life--also reflect the diversity of occupations and skills to be found in the capital, ranging from bakery to fruit selling or street-cleaning. Seven decades later, Christina's pictures of Beijing show how some of these occupations have survived through the decades or evolved to meet the needs and tastes of the modern capital.

她拍摄的镜头——从面点师傅、街头卖水果的生意人到街道保洁人——也是那个时代形形***的职业的写照。70年后的今天，Christina Lionnet的一组照片让我们看到，其中的一些职业在如今的北京城依旧存在，不过，为了适应这个现代化都市的需求，这些职业都或多或少地发生了变化。

Lines transformed by particle bombardment have been discussed. The selectable marker bar gene cassette that integrated with the rice genome had multiple copies and showed complex segregation behaviors including the presence of 'false homozygotes', with abnormal segregation ratios ranging from 35:1 to 144:1 (Basta-resistant: sensitive plants) in their progenies. In five out of ten original transgenic lines, bar gene can be stably transmitted as a dominant gene to self-pollinated T2 progeny.

结果发现：作为筛选标记的bar基因表达盒在水稻基因组中多拷贝整合，遗传分离行为复杂，还出现了Basta抗感分离比在35：1～144：1之间的&假纯合体&，但50%转基因株系中（5/10）bar 基因可作为一个显性基因按孟德尔方式稳定遗传至自交T2代。

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。