rotating sector disk method

crystal rotating method

Rotating method

rotating sector

rotating sector mirror

slope adjustment with rotating method

slope adjustment with rotating method at false cen

slope adjustment with rotating method at solid cen

vector rotating method

sector method

force method method

Method of instruction; Teaching method; Method of teaching

Method of teaching; Teaching method; Method of instruction

Teaching method; Method of teaching; Method of instruction

case history method; case method; case study method

method of instruction; method of teaching; teaching method

right-wrong method; true-false method; yes-no method

Right-wrong method; Yes-no method; True-false method

True-false method; Right-wrong method; Yes-no method