adjacent side

基本解释

Ratio of the adjacent side to the hypotenuse .
直角三角形的一個角的鄰邊與斜邊之比。
The plot is situated 500m south of Jiaxing entrance & exit of the expressway, adjacent to west side of Jiahai Road and at the south side of China Small Home Appliance City.
該地塊位於高速公路嘉興出入口南側500米，緊靠嘉海公路西旁邊，北靠中國小家電城。
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A fuel stream is injected through at least one fuel injection side adjacent to the oxidant injection side in the combustion zone.
燃料物流通過至少一個燃燒區內與氧化劑噴入側相鄰的燃料噴入側噴入。

It's not something you're going to go back and remember it's an opposite side, it's an adjacent side.
不應該再去繙以前的課本,還去廻憶哪個是對邊,哪個是鄰邊
耶魯公開課 - 基礎物理課程節選

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