A simple tool for identifying these problems early in labour is the partograph – a graph of the progress of labour and the maternal and fetal condition.
在分娩的早期发现难产问题的方法是通过产程图，即通过生产的进程图来监测母婴状态。
This paper describes an approach using power bond graph and condition space method to digitally imitate the dynamic characteristics of the hydrostatic bearings with film feedback throttle.
本文介绍采用功率键合图和状态空间法对薄膜反馈节流液体静压轴承的动状特性进行数字模拟的方法；
In this paper, we study the condition which makes the fundamental group of graph have every positive integer as the index of some normal subgroup.
本文主要研究图的基本群的正规子群的指数何时成为任意正整数的条件。
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