研制 yánzhì to research and manufacture
to research and manufacture; to research and to develop
How to remember 研制: 研 research + 制 system = to research and manufacture.
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How it is used
- To develop and manufacture (esp. new tech/equipment) - 研制新药 (yánzhì xīn yào) develop a new drug; 研制导弹 develop missiles.
- Combines research + production of something advanced. Contrast 研发 (yánfā, R&D) - 研制 stresses actually building a concrete product (weapons, drugs, machines), often through trial.