Examples

H--CC--H is the structural formula of acetylene → structural formula

at 50 km/h

以每小时50公里的速度 → at

at a speed of 70km/h

以时速70公里 → speed

C₆H₁₂O₆ is the molecular formula of sucrose whereas CH₂O is its empirical formula → empirical formula

an H-beam → h

H → H

H₂SO₄ is the molecular formula of sulphuric acid → molecular formula

the future in English is a compound tense involving the use of such auxiliary verbs as ``shall'' and ``will'' → compound

x⁴ + x + 3 and xyz² are of the fourth degree → degree

``Sally'' is a hypocorism for ``Sarah'' → hypocorism

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