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1.CGs mostly were ball-shaped and elliptical.
CGs 大多呈球形。收藏指正
2.a red ball-shaped firecracker with high explosive power.
具有高爆炸能量的球形爆竹。收藏指正
3.a ball of fire (such as the sun or a ball-shaped discharge of lightning).
火球（象太阳或发光的球形物）。收藏指正
4.The cup-shaped cavity at the base of the hipbone into which the ball-shaped head of the femur fits.
髋臼髋骨基部杯状的空腔，股骨头部置于其中收藏指正
5.The end of a hammerhead opposite the flat striking surface, often wedge-shaped or ball-shaped and used for chipping, indenting, and metalworking.
锤顶锤头平的打击面反面通常呈楔形或半球形的顶端，用于削、凿和金属加工收藏指正
6.Any of various fungi of the genus Lycoperdon and related genera, having a ball-shaped fruiting body that when pressed or struck releases the enclosed spores in puffs of dust.
松勃菌任一种松勃菌属及相关属类的任几种真菌，有受压或受挤后以粉雾状释放内部孢子的球形子突体收藏指正
7.The size of polypi was from 0. 3 cm to 2. 2 cm, and 97. 5% was no more than 1. 0cm. 165 polypi were with pedicle or subpedicle and 267 polypi were half ball shaped.
息肉大小自0．3cm至2．2cm，≤1．0cm者占97．5％，分别呈有蒂及亚蒂者165例、半球状267例。收藏指正
8.The newly developed φ508 mm medium pressure ball valve adopts new C-shaped metal seal ring for tightening valve rod sealing mechanism, and applies integrated disc spring and new valve seat sealing stuff between the valve seatand the ball to ensure high pressure sealing and improve service life.
新研制的508mm(20英寸)中压球阀广泛用于石油、天然气、市政工程供气、供水等行业,该大口径球阀设计了新型C形金属密封环组件,用于自紧阀杆密封机构; 在阀座与球体之间采用整体碟形弹簧和新型阀座密封填料,以保证高压密封,提高使用寿命;收藏指正
9.Design & application of V-shaped ball guideway blocks
V形滚珠导轨支承的设计和应用收藏指正
10.This chair is created by heating and pressing a seat-shaped former into a ball of polypropylene rope.
这张椅子是将尼龙绳卷成一个球状，然后用一个具有坐垫形状的模具加热后压制而成的。收藏指正
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同义词辨析
这两个名词均有“舞会”之意。
ball : 多指社交性的舞会，场面较为隆重和正式。
dance: 指一般性的非正式舞会。