hy
hy — abbreviation
1. a short written form of the word "heavy", used in notes, lists, labels, and sign
a short written form of the word "heavy", used in notes, lists, labels, and signs to indicate that something has a lot of weight, is strongly built, or exists in a large amount.
William marked the delivery box 'hy' so the team would bring a dolly.
hy used on shipping labels for weight notice
The inventory listed the floor polisher as 'hy eq' — it needed a forklift.
hy eq = heavy equipment in inventory context
Joaquín put a 'hy — two-person lift' sticker on the crate of tiles.
The factory log read 'hy load on line 3 — send extra staff to unload.'
用法筆記
Almost always a written abbreviation — you will see it on labels, delivery notes, warehouse inventory forms, and classified advertisements. It is rarely spoken aloud.
常見錯誤
2. the short written form of "henry", the SI unit used to measure electrical induct
the short written form of "henry", the SI unit used to measure electrical inductance — the ability of a coil or conductor to store energy in a magnetic field when an electric current flows through it.
The lab report showed the solenoid had 5 hy of inductance.
hy after number = inductance value in henrys
Andrew adjusted the inductor until the meter displayed 2.5 hy.
Dr. Xiu Chen noted that a 10 hy coil produces a stronger field than a 3 hy coil.
The datasheet listed the primary winding at 8 hy and the secondary at 0.4 hy.
Sven wound a 1.2 hy inductor on a ferrite core for his radio circuit.
用法筆記
Used exclusively in technical writing — lab reports, component datasheets, engineering diagrams, and physics textbooks. The unit is named after the American scientist Joseph Henry.