- 言(word; speech)
- 式(pattern; rule)
A test uses words to check whether something follows the rules correctly.
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(chemistry) litmus paper
Litmus paper can test acidity and alkalinity.
(chemistry) litmus paper
Litmus paper can test acidity and alkalinity.
A test uses words to check whether something follows the rules correctly.
Paper is made from silk fibers, and the sound hint follows the character 氏.
A test uses words to check whether something follows the rules correctly.
Paper is made from silk fibers, and the sound hint follows the character 氏.
(chemistry) litmus paper
(chemistry) litmus paper
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