一、关于“暗潜影”。石道钧同志在答覆中引了这个词的出处。的确,在“Imaging Systems”这本书的第111页上有这样一个式子:(?)这个式子是用来说明TiO_2在照光时被激发变为TiO_2,但在暗中TiO_2又会变回TiO_2。这也正是《小词典》中所说的“其潜影有可逆性”。不幸的是由于印刷上的问题,使“dark”与“Latent ima-go”不但排在了同一行,而且相连如一词,这就容易使人误解为 First, on the “dark latent shadow.” In his reply, Comrade Shi Dao-kun drew the source of the word. Indeed, on page 111 of the book Imaging Systems, there is a formula like this: (?) This formula is used to show that TiO 2 is excited to TiO 2 when illuminated, but TiO 2 is changed back to TiO 2 . This is precisely what the “small dictionary” says “its latent image is reversible.” Unfortunately, due to typographical problems, “dark” and “Latent ima-go” are not only in the same line, but also connected to the same word, which is easily misunderstood as