您要查找的是不是：
- A pipe having a hollow stem. 芦笛主干中空的管乐器
- Any of various nonflowering plants of the genus Equisetum,having a jointed,hollow stem and narrow,sometimes much reduced leaves. 木贼属植物多种木贼属不开花植物，其茎中空有节，其叶狭长，有时十分小
- Any of various nonflowering plants of the genus Equisetum, having a jointed, hollow stem and narrow, sometimes much reduced leaves. 木贼属植物多种木贼属不开花植物，其茎中空有节，其叶狭长，有时十分小
- The top is a cup with a wide rim, the middle is a sculptured hollow stem, and the bottom looks like an overturning pot.The stem connects the three.The shape of the goblet is elegant and exquisite. 杯身可分为三部分，上部是一个敞口，中部为透雕的中空柄腹，下部是覆盆状底座，以一根细长管连成统一的整体，形态纤巧细致。
- (formerly)pen made from the hollow stem of quill （旧时）（用羽毛管做的）羽毛笔.
- Motor actuators for rising stem valves can be powered by air, gas, hydraulic or electric power. 用于升降阀杆(明杆)阀门的马达执行机构可以采用空气、燃气、液体或电力作为动力。
- European perennial naturalized throughout United States having hollow stems with a few long narrow tapered leaves and each bearing a solitary pale yellow flower. 欧洲的一种多年生植物，已被移入美国，花茎中空，叶子狭长且尖，有淡黄色单生的花。
- stem valve self-sealing coupling 推杆阀自封接头
- outside non-rising spindle rising hollow stem type 外螺纹阀杆中空式
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- Have you turned off the water valve? 你关掉水阀了吗？
- The bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
- The connecting rod may drive a valve stem directly. 连杆可以直接带动阀门的把柄。
- His protests on human rights sound hollow. 他就人权问题提出的抗议听来很空洞。
- Bamboo stem is hollow, which makes them very light. 竹杆是空心的,这使得它们非常轻。
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- The stem is hollow with pith cavity. 茎中空,具较大的髓腔。
- 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。
- Let's have a picnic down in the hollow. 咱们到下面的山谷去野餐吧。
