用bilateral symmetry造句子，“bilateral symmetry”造句

2、Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry.

1、Having or marked by bilateral symmetry.

3、Reflection symmetry is also known as bilateral symmetry. It is the "mirror" effect or when one object is reflected across a plane to create another instance of itself.

4、The residences are all Siheyuan (quadrangles) made of black bricks and grey tiles with clear axes and bilateral symmetry.