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- The ram which houses the die, also compresses the metal against the container, forcing it to flow backwards through the die in the hollow plunger or ram. 推杆提供模具的同时也向刚体内挤压金属坯料，强迫金属坯料穿过模具在中空的冲杆或推杆内流出。
- 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 bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
- 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。
- 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。
- hollow plunger pump 空心柱塞泵
- hollow plunger 空心顶子
- I played Max at chess yesterday and beat him hollow. 昨天我跟麦克斯下棋，杀得他一败涂地。
- We filled the hollow in the drive. 我们把车道上的坑填平了。
- He took a photo of the plunger in action. 跳水者正在跳水时, 他拍了张快照。
- Her hollow laugh betrayed her contempt for the idea. 她的大笑显示了她对此观点的蔑视
- The life of the BeCu plunger is 2. 铍铜压射冲头的使用寿命是球铁压射冲头的2．5倍多。
- The plunger should be withdrawn from sleeve. 柱塞应从套筒里抽出来。
- This tree looks high and strong but actually its trunk is hollow. 这棵树看起来又高又壮，实际上树干是空的。
- The hollow under the upper part of the arm at the shoulder. 腋上肢和肩膀连接处下面呈窝状的部位
