Key Index是什么意思

用法例句

To introduce the advantages and design difficult point of triangle strand wire rope to act as main cable of the cable crane.

介绍三角股钢丝绳作为缆索起重机主索的优势及设计难点,阐述缆索起重机主索用6V×43+IWR-60mm三角股钢丝绳的设计过程及生产工艺控制,研制结果表明,产品各项性能试验指标均符合执行标准的要求,拓展了三角股钢丝绳的应用领域。

It is a thorny matter in designing of hydrological cableway to calculate loading tension of main cable through deviation of cubic equations of one variable, which only to be undertaken by large quantity of manual examinations and calculations.

水文缆道主索设计的难点在于计算主索加载拉力,需要求解一元三次方程,通常是采用手工试错的计算方法来求解,计算工作量非常大,且繁琐。

Based on the practical features of the project,the paper mainly introduces the conception of a pedestrian suspension bridge , including the general arrangement ,selection of main cables ,tower ,anchorage and wind cable layout.

根据工程实际特点,介绍了某人行悬索桥的主要设计构想,包括桥梁总体布置、主索选择、桥塔、锚碇和抗风索的构造与布置。