液体

• 拼音: yè tǐ
• 汉字拆解: 液 = 氵(water — a liquid substance) + 夜 (night — originally associated with dark flowing substances); 体 = 人 (person) + 本 (root/foundation — the physical form or state of a thing; its bodily substance)

含义

Liquid; fluid. One of the fundamental states of matter, characterised by a definite volume but no fixed shape, taking the form of its container.

A scientific and general-purpose term for any substance in a liquid state. Contrasted with 固体 (solid) and 气体 (gas). Appears in scientific, medical, industrial, and everyday contexts. Common compounds include 液体燃料 (liquid fuel), 液体肥料 (liquid fertiliser), 液体药物 (liquid medication), and 液体金属 (liquid metal).

例句

1. 在极低温度条件下，部分常温状态下为气体的物质会转变为液体，例如液态氮和液态氧在低温工业中有着广泛的应用。
2. 海关检查人员使用专业仪器对旅客托运行李中可疑的液体样品进行了现场检测，以排除携带危险品的可能性。
3. 这种新型电池采用液体电解质替代传统的固态电解质，在能量密度和充放电速度上均取得了显著突破。

用法指南

语境: science, medicine, industry, daily life

语气: neutral

正确说法

• 航空安检对随身液体限制严格：单瓶不得超过100毫升，所有液体须装入1升透明密封袋，违者可能被没收并耽误行程。(Airport security has strict limits on liquids in carry-on luggage: each container must be no more than 100 milliliters, and all liquids must fit in a transparent one-liter sealed bag; violators may have items confiscated and face travel delays.)
• 材料科学的新进展使研究人员能在极端高温下精测液体金属的流动和导电特性，这对核聚变反应堆热屏蔽设计很有价值。(New advances in materials science allow researchers to precisely measure the flow and electrical conductivity of liquid metals under extreme heat, which is very valuable for designing heat shields in nuclear fusion reactors.)

错误说法

• 冰是液体 — 冰 (ice) is water in a solid state, not a liquid; say 冰融化后变成液体 or 水在常温下是液体; confusing states of matter is a basic factual error, and 液体 should only be used when the substance is genuinely in a fluid, flowing state

起源与历史

液 (liquid — 氵water radical + 夜 night; a dark, flowing substance) + 体 (body/substance/state — 人 person + 本 root; the physical form or state of a thing)

文化背景

时代: Classical/Modern

世代: All ages

社会背景: Universal