the utility model has the advantages of simple structure, low cost, little wear and tear, no dead point phenomenon and long service life.

本实用新型具有结构简单、成本较低、磨损小的优点，且不会出现死点现象，延长 了使用周期。

liquid metal enters the crystallization cavity (19) through a cow horn shape water inlet (2) positioned at a dead point on the crystallization wheel (1).

液体金属通过位于结晶腔（1）上死点处的牛角形水口（2）进入结晶腔（19）。

it concludes that pre-injection and main injection is mainly diffusive combustion in pre-injection angle of advance between upper dead point and 150? ℃a;

其结论是：上止点前150℃a以后的预喷提前角，其预喷与主喷柴油都以扩散燃烧为主；

the dead point position of mechanism is a common sight. undoubtedly, it is very important for precise press-working to solve the problem of dead-point precision.

机构的死点位置在机械中很常见，解决死点位置的精度问题对于精密压力加工无疑是非常重要的。

as you perfect this technique, the dead point will begin to feel like an instant of weightlessness.

随着你完善这个技术，静止点就会觉好像是失重的瞬间。

as you continue to improve your timing and coordination, the dead point will seem to get longer and longer.

再随着你继续提高把握时机的能力和协调性，就会觉得静止点好像变得原来越长一样。

the input errors of bp(back-propagation) network are classified into dead point error and phase reversal error in this paper. a highly reliable reconstruction method for a bp network is proposed.

本文将bp网络的输入错误分为死区错误和反相错误，提出了对输入容错的高可靠的bp网络的构造方法。