bilateral symmetry [生物] 两侧对称 ; [植] 左右对称 ; 双侧对称 ; 两面对称
spinosum bilateral symmetry 两侧对称
bilateral plane of symmetry 两侧对称平面
bilateral l symmetry 两面对称
Bilateral symmetry, for example, is almost universal among animals.
举例来说左右对称就几乎普遍地存在动物世界。
Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry.
行星状星云是一类孤立的气体星云，具有相当程度的双侧对称性。
The residences are all Siheyuan (quadrangles) made of black bricks and grey tiles with clear axes and bilateral symmetry.
城内古居民宅全是清一色青砖灰瓦的四合院。轴线明确，左右对称。
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