真空制动助力器 · 图解英语单词 · 15 个单词

真空制动助力器场景图解英语单词:15个高频词汇(vacuum connection, booster housing, vacuum chamber, rolling diaphragm, return spring, working piston…)带图标签、真人发音、中英对照,附免费可打印 A4 PDF,点图即可学单词。

Vacuum Brake Booster annotated picture vocabulary with labeled objects

本图点读词汇(15)

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