1. Even when demonstrator hens reacted with obvious disgust to a specific food, via vigorous head shaking and bill wiping, there was no evidence that observers subsequently avoided eating that food. 即使是当作为演示的母鸡对某种特定的食物表现出明显的厌恶,比如使劲摇头和擦拭嘴,也没有证据表明它们随后会避免食用这种食物。
2. The demonstrator should indicate the degree of this reliability. 验证者应该指出这种可靠的程度。
3. Demonstrator and Project leader should support each other in different stages. 演示者和项目主管将在不同的阶段互相支持。
4. System form and demonstration method for a demonstrator of grating spectra are presented. 介绍了光栅光谱演示仪系统的组成及演示方法。
5. Demonstrator should prepare a checklist on the information provided from the Project leader. 演示员将根据项目组长提供的信息准备一份项目清单。