Velocity-integrated line emission of ¹²CO( J = 3–2) ((a)–(g)), HCN( J = 3–2) (a), HCO ⁺( J = 3–2) (b), HCO ⁺( J = 4–3) (c), ¹²CO( J = 2–1) (d), ¹³CO( J = 2–1) (e), ¹³CO( J = 3–2) (f), C ¹⁸O( J = 2–1) (g), ¹²CO( J = 1–0) (h), and ¹³CO( J = 1–0) (i) in NGC 1068, observed with SMA and IRAM PdBI. Contour levels are: ¹²CO( J = 3–2) from 10σ by 6σ with 1σ = 4.8 Jy km s ⁻¹; HCN( J = 3–2) from 3σ by 1σ with 1σ = 2.6 Jy km s ⁻¹; HCO ⁺( J = 3–2) from 2σ by 1σ with 1σ = 3.4 Jy km s ⁻¹; HCO ⁺( J = 4–3) from 3σ by 1σ with 1σ = 2.4 Jy km s ⁻¹; ¹²CO( J = 2–1) from 5σ by 5σ with 1σ = 1.2 Jy km s ⁻¹; ¹³CO( J = 2–1) from 3σ by 1σ with 1σ = 0.9 Jy km s ⁻¹; ¹³CO( J = 3–2) from 5σ by 1σ with 1σ = 3.5 Jy km s ⁻¹; C ¹⁸O( J = 2–1) from 3σ by 1σ with 1σ = 0.9 Jy km s ⁻¹; ¹²CO( J = 1–0) from 5σ by 3σ with 1σ = 0.4 Jy km s ⁻¹; ¹³CO( J = 1–0) from 1σ by 1σ with 1σ = 0.1 Jy km s ⁻¹.