扫描

• 拼音: sǎo miáo
• 汉字拆解: 扫 = 扌(hand) + 帚 (broom) = to sweep systematically; 描 = 扌(hand) + 苗 (phonetic, miáo) = to trace/capture — 扫描 = sweep and trace = to scan

含义

To scan; to sweep over systematically with a device or the eyes to capture, detect, or survey.

Common in technology (document scanning, QR code scanning), medicine (CT扫描, 超声波扫描), and security (安全扫描). Also used figuratively for a quick visual survey (扫描全场 = to scan the whole room). 扫描仪 = scanner device.

例句

1. 海关工作人员利用高精度扫描设备对所有入境集装箱进行了全面检查，有效提高了走私品的查获率。
2. 他在走进会议室的瞬间迅速扫描了全场，准确判断出座位格局与出席人员的相互关系。
3. 这款移动应用支持直接扫描纸质文件并将其自动转换为可编辑的电子格式，大幅提升了办公效率。

用法指南

语境: technology, medicine, security, everyday life

语气: neutral

正确说法

• 患者在接受正式手术前需要进行一次全身扫描，以便医生全面评估病灶的位置、大小及其与周边组织的关系。(Before undergoing the formal surgery, the patient needs a full-body scan so doctors can comprehensively assess the location, size, and relationship of the lesion to surrounding tissues.)
• 进入展览现场只需用手机扫描入场二维码，系统会自动完成身份核验并生成电子入场凭证。(To enter the exhibition, simply scan the admission QR code with your phone — the system will automatically verify your identity and generate an electronic admission pass.)

错误说法

• 他扫描了她一眼 — use 扫了她一眼 or 瞥了她一眼 for a quick glance; 扫描 implies systematic, methodical scanning, not a casual single glance

起源与历史

扫 = 扌(hand) + 帚 (broom) = to sweep across; 描 = 扌(hand) + 苗 (seedling, phonetic miáo) = to trace/delineate — together: to sweep across and capture detail

文化背景

世代: All ages

社会背景: Universal