well-aimed

Borrowed from boxing," straight from the shoulder" is used to describe a well-aimed, strong criticism and "below the belt" is used to describe an unfair one.

成语“直接出击”起源于拳击运动，用来表示一针见血而又措辞严厉的批评。“击打对方腰带以下的部分”则用来表示不公正的批评。

Aimed at four kinds of practical cases in the field hydraulic tests, their respective formulas have been deduced based on unsteady well flow theory and the principle of superposition of potential functions.

针对野外水力试验常遇到的四种实际情况，根据非稳定井流理论和势函数叠加原理导出了它们各自的求参公式。

The hardware components of RTU include the terminal controller, the data acquisition module, the GPRS transmission module. As well, the software design is aimed to guarantee the normal work of RTU.

其中，远程终端RTU的硬件部分主要包括终端控制器、数据采集模块、GPRS传输模块；软件设计主要是为了保证RTU的正常工作。