incidence
n.发生，影响；入射
释义2：
incidence
/ 5insidEns /
◙ noun1. the occurrence, rate, or frequency of a disease, crime, or something else undesirable• （疾病、犯罪等的）发生，发生率 »an increased incidence of cancer. 癌症增长的发病率。 the way in which the burden of a tax falls upon the population• （人民头上的）税务负担 »the entire incidence falls on the workers. 税务统统落在工人头上。2. [mass noun] [Physics] the intersection of a line, or something moving in a straight line, such as a beam of light, with a surface• [物理] 入射【语源】
1. late Middle English (denoting a casual or subordinate event or circumstance): from Old French, or from medieval Latin incidentia, from Latin incidere 'fall upon, happen to' (see incident ). Sense 1 dates from the early 19th cent
俄语/英语字母转换