In a speech outlining the theory of science communication, Liu Bing of Tsinghua University argued that the dominant model encourages public participation in science development. 清華大學(xué)劉兵在他概括的科學(xué)傳播理論的演講中指出，主流的傳播模式鼓勵公眾參與到科學(xué)發(fā)展之中。
A mechanical model of impact truing was set up based on the theory of impact dynamics and stress wave spreading, and stress distribution was described accurately. 以沖擊動(dòng)力學(xué)和應力波傳播理論為基礎，建立了沖擊整形的力學(xué)模型，較為準確地描述了水泥環(huán)中的應力分布。
