林産: production from the forest, or the products so produced / 燐酸: phosphoric acid

亜燐酸: phosphorous acid

I don't speak Japanese

(dialect, Hakata) teacher, professor

an elder / a scholar / a teacher or a professor / sensei (Japanese martial arts teacher) / sir, a polite form of address to teachers, doctors, etc.

a title used after the name of teachers, doctors, lawyers, or certain other professionals

the Japanese language

(chiefly women's speech) first person singular pronoun: I, me

(chemistry) phosphorous acid

production from the forest, or the products so produced