immersion/ɪˈmɜ:ʃn; ?@ -ʒn; ɪ`məʒən/ n[U]1 immersing; being immersed 沉浸; 浸沉.2 baptism by putting the whole body under water 洗礼; 浸礼. immersion heater electric heater fixed inside a hot-water tank in a home 浸入式加热器（家庭用的）.
牛津英汉双解词典