wrench opening扳子: spanner; wrench开: open; turn on; switch on; be ...度: surmise; estimate开度: aperture (辐射器)◇开度可调遮光器 variable aperture shutter活扳子: adjustable spanner monkey wrench; spanner下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:扳子开度，即可在微信中查询翻译
