Furthermore,pitchfork bifurcation is studied under the small disturbance of a bifurcation parameter in the system.
作者研究了一类非线性磁流变阻尼系统的局部分岔,运用中心流形定理讨论了系统具单零特征值时的普适开折,给出了分岔集与相图,并进一步证明了在系统内的小参数扰动下系统将发生音叉分岔。
The theory of bifurcations of the fixed point was applied to such model,and it was proved that the symmetric periodic motion only has pitchfork bifurcation by the analysis of the symmetry of the Poincaré map.
把映射不动点的分岔理论运用到该模型,并通过分析对称系统的Poincaré映射的对称性,证明了对称型周期运动只能发生音叉分岔。
She dug a fork in a piece of bread
她用叉子叉了一片面包。
A spit for roasting meat.
炙叉烧烤肉用的叉子
He jabbed his fork into the potato.
他用叉子叉马铃薯。
Stick your fork into the meat to see if it's properly cooked.
用叉子叉叉肉看是不是煮烂了。
I've got a knife and fork and chopsticks.
我有刀子，叉子和筷子。
Have you got a knife and fork or chopsticks?
你有刀子，叉子和筷子吗？
He stabbed a piece of meat from the plate with his fork.
他用叉子从盘子里叉起一块肉。
Fluff with a fork, cover again, and set aside until ready to serve.
用叉子叉松，再盖上盖子，放置一边备用。
A salad is eaten with a fork only, held in the right hand with points turned up.
色拉只准用叉子吃。 吃色拉时，右手拿叉，叉尖朝上。
We need some chopsticks and long forks.
我们需要筷子和叉子，
Don't forget forks and spoons.
不要忘记叉子和勺子。
A large, long-handled fork with sharp, widely spaced prongs for lifting and pitching hay.
干草叉一种大有长柄的叉子，叉头坚而宽用以举或叉干草
He stuck his fork into a potato.
他用叉子叉了一个马铃薯。
She sank her fork into the meat to see it was well cooked.
她把叉子叉到肉里看看是否炖烂了。
He said, and forked up a bacon.
他说着，用叉子叉了一块咸肉。
A prong on an implement such as a fork or pitchfork.
尖齿叉子或干草叉等工具上的尖头
In the cork workshop, the workers fork m the pork.
在软木车间,工人们用叉子叉猪肉.
Mother sank her fork into the meat to see if it was well cooked.
母亲把叉子叉进肉里，看看是否煮好了。