杠鈴兩端重量可調節的棒，運動(dòng)或鍛煉時(shí)用來(lái)舉重
A bar with adjustable weights at each end, lifted for sport or exercise.
擋板，調節風(fēng)門(mén)一種可調節的薄片，如在熔爐或火爐的通氣管中的，用來(lái)控制氣流
An adjustable plate, as in the flue of a furnace or stove, for controlling the draft.
風(fēng)車(chē)靠風(fēng)力旋轉帶有可調節的葉片或梯級橫木的輪子所產(chǎn)生的能量來(lái)運轉的一種機器
A machine that runs on the energy generated by a wheel of adjustable blades or slats rotated by the wind.
星座一覽圖天體球的一半或多半在平面圖上的極投影圖，這種圖具有可調節的遮蔽物以顯示在給定時(shí)刻和位置可見(jiàn)的恒星
A polar projection of half or more of the celestial sphere on a chart equipped with an adjustable overlay to show the stars visible at a particular time and place.
