针对目前国内对自计时电路设计原理方面的研究才刚刚起步的现状，采用抽象和具体相结合的对比研究方法，对握手协议和延迟假定进行了深入研究，并对研究结果进行了直观的说明。
To the actualities that domestic study of self-timed circuit design principles is just in the primary stage, a in-depth study of handshake protocol and delay assumption have been done.
为避免桥梁共振，设计时应满足第一阶竖向自振频率大于车辆最大速度与车辆长度的比值。
To avoid the most dangerous resonance, the first vertical frequency of the bridge should be greater than the ratio of the maximum vehicle speed to the vehicle length in design.
安全可靠：接头设计时，考虑到上碗扣螺旋摩擦力和自重力作用，使接头具有可靠的自锁能力。
Safe and reliable: joint design, taking into account the friction on the screw and self Bowl gravity, so that a reliable self-locking joint capabilities.
自1973年发生石油危机以来，燃油价格暴涨，因而燃油经济性已成为船用柴油机设计时考虑的首要因素。
Because of the drastic increase in oil prices since the 1973 fuel crisis, the fuel price has become the main factor to be considered in designing Marine diesel engines.
自1973年发生石油危机以来，燃油价格暴涨，因而燃油经济性已成为船用柴油机设计时考虑的首要因素。
Because of the drastic increase in oil prices since the 1973 fuel crisis, the fuel price has become the main factor to be considered in designing Marine diesel engines.
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