1制作气孔永久装片1．实验原理通常生物实验中观察气孔是采用镊子揭下蚕豆叶的下表应气孔制成临时装片。这样做容易撕坏气孔，影响观察效果，而且还带有季节性。改闲指甲油硬揭法，可以制成永久装片，操作方便，效果更佳。2．材料用具指甲油，一小块透明胶带，镊子．盖玻片，载 1 making pores for permanent loading Experimental Principles Observing the pores in biological experiments is usually performed by using a rake to peel off the leaves of the beans. This will easily tear the pores, affect the observation, and it will also have seasonality. Hard nail polish can be hardened and released, and it can be made into a permanent film with easy operation and better results. 2. Material Appliance Nail Polish, a small piece of Scotch tape, tweezers. Cover glass, loaded