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- A hollow shaft that rotates on a solid shaft when gears are engaged. 套管轴齿轮啮合时，在一固定机轴上旋转的中空轴
- Driving power for the cutting tool comes from the rotation of the spindle, which is a hollow shaft that rotates in bearings. 刀具的驱动力来自主轴的旋转，主轴则是一根在轴承中旋转的空心轴。
- Direct driving by hollow shaft expels chains and saves time for lubrication and tension adjustment on chains. 直接由空心驱动轴驱动，省去了链条润滑等维护工作。
- This type of flotation machine is formed by U through solid, hollow shaft inflation, suspension rotor and new type impeller. 搅拌式浮选机采用“U”型槽体、空心轴充气和悬挂定子，尤其是采用了一种新式叶轮。
- One of the light, flat growths forming the plumage of birds, consisting of numerous slender, closely arranged parallel barbs forming a vane on either side of a horny, tapering, partly hollow shaft. 羽毛构成鸟类羽毛的轻且平的一种生长物，由大量细长的、紧密并列的钩在一个角状的、中空的锥形羽轴两边所形成的羽片
- hollow shaft parallel cardan driving device 空轴平行万向驱动装置
- hollow shaft type high pressure cooling system 穿轴式高压冷却系统
- a hollow shaft that rotates on a solid shaft when gears are engaged 套管轴齿轮啮合时，在一固定机轴上旋转的中空轴
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The hollow stemlike main shaft of a feather. 翎管羽毛的中空的茎状羽干
- The bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
- A slot for a key in the hub or shaft of a wheel. 键槽轮子的毂或轴里的键的沟槽
- His protests on human rights sound hollow. 他就人权问题提出的抗议听来很空洞。
- A round hollow in a hillside; a cirque. 盆地山区中的圆的洼地
- She held the small bird in the hollow of her hand. 她把那小鸟握在掌心里。
- Flexibility, as in the shaft of a golf club. 弹性，韧性柔韧性，易变性，如高尔夫球棒的柄
- Let's have a picnic down in the hollow. 咱们到下面的山谷去野餐吧。
- We heard a hollow boom of thunder. 我们听到低沈的隆隆雷声。
- These chocolate eggs are all hollow. 这些巧克力蛋都是空心的。
- Vertical hollow shafting two speed motor 立式空心轴双速电机
