In determining whether a signature on a bill is that of the principal or that of the agent by whose hand it is written the construction most favorable to the validity of the instrument shall be adopted . It can judge if a proposition is valid .

在鉴定汇票签名属主事人或代理人 手笔时，应采取对 票据效力最有利之方法予以推定。它既可以判定一个命题公式是重言式、盾式或协调式，也可以判定命题推理是否有效。

On the base of the modal the structure of the probe and hardware of the system is designed and the software is written . Taking advantage of technology virtual instrument a virtual 3-D sound intensity measurement and analysis system is developed .

在模型的基础上设计了对应的探头结构、采集分析系统框架，以及采集分析软件 包，运用虚拟 仪器技术开发出了一套三维声强虚拟测量分析系统。

The dissertation was written with the subject of radar incorporate test system technology in production debugging and maintenance about research and realization on instrument driver of the high speed digital test module and fault diagnostic reasoning and the task I have accomplished in the subject .

本文是结合课题某型雷达生产调试/维护保障一体化测试系统技术中关于高速数字测试模块 仪器驱动器和故障诊断推理软件的研究与实现，并根据自己在该课题中所承担的任务 撰写完成。

I have no means of supplying your needs . In modern systems of law formal requirements invariably call for some kind of written instrument .

在现代法律体系中，形式要件要求有某种书面文件上的规定总是需要一些 书面 文书。

This Contract shall not be changed verbally but only by a written instrument signed by the Parties .

本合同不得以口头方式修改，而须经双方签署 书面 文件后方可修改。