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- The rule of combination of symmetry operations is successive performance of them. 对称操作的组合规则，是逐次地去运用它们。
- I did the calculation by the rule of three. 我是根据比例运算法则计算出来的。
- Chinese architecture adheres to the calligraphic rules of symmetry and balance, and the design of Chinese gardens, pavilions and temples all reflect the structural rules and rhythms of calligraphy. 中国古代建筑从布局到主体的梁柱结构，都遵循对称、均衡、主从关系等法则，园林建筑中的含蓄、借景，以及亭、台、楼、榭追求的空灵、飞动等都与书法密切相关。
- She made a rule of eating an apple a day. 她每天一定要吃一个苹果。
- The rule of thumb in this business is courtesy. 这门生意的形式法则是礼貌至上。
- The butterfly is an example of symmetry. 蝴蝶是结构完全对称的一个例子。
- A kite is a quadrilateral with one line of symmetry. 风筝是个有一条对称线的四边形。
- People rose up against the despotic rule of their potentate. 人们起来反抗君主的专制统治。
- By breaking the rule of absolute secrecy, he became a marked man. 他因违犯绝密条例，成了处罚对象。
- The same holds true for any molecule with a center of symmetry. 对任何有对称中心的分子同样是对的。
- A teacher's most basic rule of thumb is: be patient. 教师最根本的法则是耐心。
- CABC is a plane of symmetry of the cellular structure. CABC是这个格子结构的一个对称面。
- The company formulates the rule of deed. 公司指定了行为规则。
- It's against the rules of the school to smoke. 吸烟是违反校规的。
- The rules of safe driving apply to everyone. 安全驾驶之规则适用于每个人。
- I never weigh anything when I'm cooking.I just do it by rule of thumb. 我做饭时从来什么也不称量，只是根据实际经验估量做。
- A center of symmetry must coincide with the center of mass. 对称中心必须与质量中心重合。
- His behavior transgressed the moral rules of the social conduct. 他的行为违背了社会行为的道德准则。
- I never weigh anything when I'm cooking-I just do it by rule of thumb. 我烹饪从来不称重量——只是凭经验下料。
- It proportion of symmetry, oval-shaped eyes and big God. 它比例匀称，椭圆形的眼睛大而有神。
