时速

• ピンイン: shí sù
• 漢字の分解: 时 = 日 + 寺 (time, per unit of time); 速 = 辶 + 束 (speed, swift)

意味

時速

Used in transport, meteorology, and physics to express how fast something is moving over the course of one hour. Common in official traffic regulations (限速, speed limit), weather bulletins describing wind or typhoon movement, and high-speed rail specifications. Collocations: 时速一百公里 (100 km/h), 以时速…行驶 (travel at a speed of…), 最高时速 (maximum speed).

例文

1. 这辆高铁以时速三百五十公里的速度穿越平原，将两座城市之间的旅行时间压缩到不足一小时。
2. 驾驶员在进入施工路段之前必须严格遵守限速标志，将时速控制在规定范围之内，不得超速行驶。
3. 台风以每小时约二十公里的时速向沿海地区缓慢移动，气象部门已发出橙色预警信号。

使い方ガイド

場面: transport, meteorology, physics, traffic regulations

トーン: neutral

正しい言い方

• 该型号列车的最高时速可达三百五十公里，是目前国内商业运营速度最快的高铁车型，显著缩短了沿线城市之间的通行时间。(This model of train can reach a maximum speed of 350 km/h, making it currently the fastest commercially operated high-speed rail type in the country, significantly reducing travel time between cities along the line.)
• 根据交通部门最新发布的公告，本路段限速已由原来的时速八十公里调整为六十公里，请所有驾驶人注意查看并严格遵守。(According to the latest notice issued by the traffic authority, the speed limit on this section of road has been adjusted from 80 km/h to 60 km/h; all drivers are asked to take note and comply strictly.)

避ける言い方

• 时速 when referring to speed in contexts measured in seconds or minutes — use 秒速 (speed per second) or 分速 (speed per minute) respectively; 时速 is specifically per hour

起源と歴史

时 (per hour, of the time) + 速 (speed, velocity)

文化的背景

世代: All ages

社会的背景: Universal