our parents let sb. down = disappoint sb.

1、

determination of wax content of natural gas condensate by the urea dewaxing method

尿素络合法测定天然气凝析油中的蜡含量

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2、

evaluation and analysis of integrated utilization of hainan natural gas condensate oil

海南凝析油综合利用的分析评价

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3、

steel for welded chain cables

焊接锚链钢

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4、

steel pipe offshore cranes flash welded chain forged connecting links

结构钢管近海起重机系泊锚链

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5、

it is also likely that characteristic lean american physical build resulted largely from what and how the people ate.

美国人的身体特别瘦，也可能大部份是由于人们吃什么和怎样吃造成的。

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6、

synergic wear of impact erosion and cavitations erosion test equipment and its experimental study

冲蚀与气蚀复合磨损试验装置及其试验研究

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7、

gis based analysis of spatial-temporal distribution of soil nutrients in a suburb region: a case study of the daxing district in beijing city

基于GIS的城乡交错带土壤养分时空变化及格局分析&以北京市大兴区为例

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8、

observation on epidemiological effects of hepatitis b vaccine post-immunization for 3-12 years old children in daxing district of beijing city

北京市大兴区3-12岁儿童乙型肝炎疫苗免后流行病学效果观察

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9、

effects of the afforestation models along the beijing-jiulong railway on aerodynamics in daxing district of beijing

京九铁路大兴段绿化模式动力效应的研究

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10、

studies on security assessment of farmland resources in swift-expanding urban cities: a case study on daxing district of beijing

城市快速扩展区耕地资源安全评价研究&以北京市大兴区为例

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11、

this paper analyzes the above problems by the experimental scheme of rural social insurance of the aged in daxing district of beijing.

结合北京市大兴区农村社会养老保险试点方案，对上述问题作了简要分析。

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12、

investigation on understanding situation of knowledge of hpai prevention and control among exotic population in daxing district of beijing

北京市大兴区部分外来人员预防高致病性禽流感知识现状调查

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13、

analysis of results of health examination ( 2004.6~ 2006.6) the health-related practitioners of daxing district

大兴区2004.6~2006.6卫生从业人员体检结果分析

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14、

physical principle of wind erosion in sand land and countermeasures& a case study of daxing district in southern beijing

北京南郊沙地风蚀物理特征及防护对策研究&以大兴区为例

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15、

a preliminary discussion on carrying on project-management in community health service project of daxing district of beijing

北京市大兴区部分社区卫生服务项目实行项目管理初探

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16、

evaluation of potential benefits of cultivated land consolidation: a case in daxing district of beijing municipality

耕地整理的潜在效益评价&以北京市大兴区为例

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17、

the application of dmc data to the land use change dynamic monitoring& taking daxing district of beijing as an example

DMC数据在土地利用动态监测中的应用分析&以北京市大兴区为例

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18、

analysis on the epidemic of measles in daxing district of beijing city from 2000 to 2005

2000～2005年北京市大兴区麻疹疫情资料分析

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19、

analysis on situation of reported occupational disease hazards projects of the 213 enterprises in daxing district, beijing

北京市大兴区213家企业职业病危害项目申报情况分析

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20、

a cognizance to the growth poles of tourism daxing district in beijing city

北京市大兴区旅游业生长极认定

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