pitchfork
英 [ˈpɪtʃfɔːk]
美 [ˈpɪtʃfɔːrk]
n. 杈子; 干草叉
复数：pitchforks 过去分词：pitchforked 过去式：pitchforked 现在分词：pitchforking 第三人称单数：pitchforks
BNC.25645 / COCA.22185
牛津词典
noun
- 杈子；干草叉
a farm tool in the shape of a large fork with a long handle and two or three sharp metal points, used especially for lifting and moving hay (= dried grass), etc.
柯林斯词典
- 干草叉；草耙
Apitchforkis a tool with a long handle and two pointed parts that is used on a farm for lifting hay or cut grass.
英英释义
noun
- a long-handled hand tool with sharp widely spaced prongs for lifting and pitching hay
verb
- lift with a pitchfork
- pitchfork hay
双语例句
- Poincare map for one-degree-of-freedom impact oscillator. A large number of numerical simulation shows that one-degree-of-freedom impact oscillator between two rigid sides could only have pitchfork bifurcations, while the two-degree-of-freedom vibro-impact system could have pitchfork bifurcations and Hopf bifurcations.
数值模拟表明单自由度双面碰撞振子的不动点只存在音叉分岔，而两自由度碰撞振动系统的对称型周期n-2运动可能存在音叉分岔以及Hopf分岔。 - A simple bimolecular reaction model giving rise to pitchfork bifurcation
一个简单的能呈现二分岔现象的双分子反应模型 - The steady-state solutions and their local stabilities are analyzed analytically. The Hopf bifurcation sets and the Pitchfork sets, on the driving frequency and driving force plane, are determined theoretically and experimentally, showing they agree with each other qualitatively.
解析分析了演化方程的稳态解及其局部稳定性，理论和实验确定了驱动频率和驱动力平面上的Hopf分岔集和叉式分岔集，理论和实验结果定性吻合。 - It is concluded that the response of this system is a pitchfork bifurcation and the influence of excitation amplitude F 1, F 2 and damping μ is great. The property of the solutions can be easily controlled by adjusting F 1, F 2 and μ.
研究表明，该系统的稳态响应为一叉型分岔，激励幅值F1，F2和阻尼μ对普适开折参数的影响很大，通过调整F1，F2和μ可以很方便地控制解的分岔特性。 - Pitchfork Coat and Shovel Coat Hanger
干草叉和铁锹衣架 - We call it the pitchfork.
我们称它做强行注射。 - Moreover, the pitchfork bifurcation curve is given, and the stability of equilibrium points is discussed in terms of different domains partitioned by the bifurcation curve.
并给出了分支曲线图，讨论了在由分支曲线划分的不同区域里平衡点的稳定性。 - There are three there, Bill, with a jolly large blue unicorn and gold pitchfork on'em: which is the old lady's arms.
那儿有三把椅子，比尔，上边画着一头挺大的蓝色独角兽和一把金色的草叉，是这家老太太的纹章。 - Chris kaskie, President of pitchfork media
克里斯•卡斯基，独立在线音乐媒体PitchforkMedia总裁 - Some typical bifurcations such as period-doubling, tangent bifurcations, pitchfork and homoclinic bifurcations were observed.
观察到了许多典型的分岔现象，如倍周期分岔、切分岔、叉式分岔、同宿分岔等。