摘要：with the principle of cognitive consonance, this thesis studied official document translation from the perspectives of contextual correlates and communicative correlates. Specifically, among the contextual correlates, the social and cultural factors, the mental workings, cognitive mechanism, the translator' s intentions, the needs for objective and authoritative information, the aesthetic expectations and acceptability of the target receptors are prominent in their influence upon the translator' s linguistic choice-making. The linguistic contextual correlates including intertexuality, contextual cohesion, sequencing,and style play a very important role in determining the translators' linguistic choices in the official document translation.

摘要：水下航行体在科研阶段的安全性已经越来越重要,它关乎科研成本的巨大浪费,更关乎科研数据的丢失,无法分析辛苦得来的宝贵数据,更严重的是,航行体的丢失,使得科研无法继续进行,耽误科研的进度。因此水下航行体应急控制系统显得尤其重要。本水下应急控制系统采用C8051F040单片机为控制核心,Am29F040Flash存储器为存储单元,C语言为编程环境来实现。它的实现,确保了航行体的安全,对整个科研起到至关重要的作用。实际应用证明,该系统具有较高可靠性和实用性,为保证水下航行体安全提供了一种有效方法。

摘要：目的探讨超声检查在胎盘血窦中的诊断效果及与围生儿结局的关系。方法选取我院于28周以后分娩的孕妇9451例,行超声检查,并以临床胎盘病理结果作为“金标准”,分析超声检查在胎盘血窦中的效果并计算诊断效能。根据病理结果将孕妇分为血窦组和对照组,对两组孕妇进行随访(随访到胎儿娩出截止),比较两组围生儿结局;采用Pearson相关性分析软件对孕妇胎盘血窦发生率与围生儿结局进行相关性分析。结果9451例孕妇经病理检查确诊胎盘血窦28例,确诊率为0.30%。超声检查最终确诊25例,检查准确率为89.29%(25/28)(P>0.05),诊断灵敏度为82.14%(23/28)、特异度为99.98%(9421/9423);血窦组剖宫产率、产前出血率、新生儿窒息率、胎儿宫内生长受限率高于对照组(P<0.05);Pearson相关性分析结果表明:胎盘超声诊断胎盘血窦检出率与剖宫产率、产前出血率、新生儿窒息率、胎儿宫内生长受限率呈正相关性(P<0.05)。结论超声检查用于胎盘血窦中检出率及诊断灵敏度、特异度较高,且与围生儿结局存在强相关性,加强孕妇超声检查,能改善胎盘血窦孕妇妊娠结局。