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参考国内外现有的τ－ｃ工厂及其探测器的设计结果，给出了ＢＴＣＦ探测器的总体指标。根据这些指标设计并开发了用于ＢＴＣＦ物理研究的快速蒙特卡罗模拟方法，并用此方法对一系列重要的物理课题进行了蒙特卡罗模拟。文中描述了该模拟方法的设计思想、程序流程以及这种方法在ＢＴＣＦ可行性研究乃至预制研究阶段的优越性，同时也给出了对若干重要物理问题的模拟结果。从而论证了建造ＢＴＣＦ的必要性和不可替代性。
With reference to the design results of existing τ-c factories and their detectors at home and abroad, the overall index of the BTCF detectors is given. Based on these indicators, a fast Monte Carlo simulation method for the physics research of BTCF was designed and developed. With this method, a series of important physics topics were simulated by Monte Carlo. In this paper, the design idea, program flow and the superiority of this method in the feasibility study of BTCF and even in the prefabricated research stage are described. Simulations of some important physical problems are also given. This demonstrates the necessity and irreplaceability of constructing BTCF.