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- It described the process of coal-gas abstracts gas with exponent sign function and concluded gas gushing quantity attenuates with negative exponent. 用幂指数函数描述煤体瓦斯解吸瓦斯过程,瓦斯涌出速度是呈负指数衰减的。给出了工作面和采空区瓦斯涌出量的计算公式。
- He persuaded her to sign the document by guile. 他用欺骗手段说服她在文件上签字。
- She's an exponent of the opinions of Freud. 她是弗洛伊德学说的鼓吹者。
- There is no sign of a let-up in the hijack crisis. 绑架危机毫无缓和迹象。
- I was forced to sign the agreement against my will. 我被迫违心地在协议上签了字。
- Soldiers sign out when they leave the barracks. 士兵离开营房得登记签字。
- She made a sign for me to approach her. 她对我发出靠近她的暗号。
- Dark clouds are a sign of rain or snow. 乌云是雨或雪将至的预兆。
- He is the supreme exponent of the English humorous essay. 他是英国幽默文章的重要代表。
- Make sure that the sign's the right way up. 一定要把符号的上下弄对。
- He wore crape as a sign of mourning. 他戴着黑纱表示哀悼。
- Certain sign precede certain event. 事情发生，必有先兆。
- There's no sign of him mending his ways. 看不出他有改进生活方式的迹象。
- The rising level of crime is a sign of the times. 犯罪率增高是这一时代的特徵。
- He removed his hat as a sign of reverence. 他脱下帽子表示敬意。
- Now let's draft the contract and then sign it. 那么我们起草合同，然后签字。
- The postman asked me to sign for the parcel. 邮递员叫我签收包裹。
- Lincoln is a famous exponent of self-education. 林肯是自我教育的著名典型。
- The exponent is a fraction or negative number. 指数是一个分数或负数。
- Shaking the head is a sign of negation. 摇头表示否认。
