His writing suffers from a diffuseness which not infrequently keeps the main issue clouded .

他的文章有点罗嗦，往往使主题模糊不清。

The functions of their diffuseness , orientation , agglomeration , catalyzer and controls are indispensable factors of science development .

其传播功能、导向功能、凝聚功能、催化功能和控制功能等等是科学事业发展中必不可少的重要因素。

Abstract : this paper generalizes the origin , diffuseness and distributing of the veranda style ar-chitecture in the world , and expatiates the evolution of the veranda style architecture in china .

摘要：本文简要概括了外廊式建筑在世界的起源、传播与分布，并重点阐述了外廊式建筑在中国的发展。