Meanings

copying calligraphy from a model

copying calligraphy without sticking to the model (calligraphy)

supercritical

critical experiment (in nucleonics)

temporary closure (of a shop, etc.)

casual income

news flash

acting prime minister

holding the proper state of mindfulness at the moment of death

clinical teaching

imperial army order

imperial army order

extraordinary Diet session

laboratory test

clinical site

long-term substitute teacher (filling in for someone on maternity or long-term sick leave)

to fail to make timely preparations

relief service (bus, train, etc.)

additional bus service

controlled clinical trial