查询词典 pivot

Holding the bow is like a teeterboard supported by thumb as the pivot and the cooperated forcing of forefinger and little finger produces a moment M.

国内近期出现了用物理模型来研究小提琴运弓问题的尝试。

Holding the bow is like a teeterboard supported by thumb as the pivot and the cooperated forcing of forefinger and little finger produces a moment M. The "P-x-M Line Method" shows when playing a down bow, M increases with x and gradually changes its direction and this process is determined by P, the gravity and barycenter of bow. The "P-x-F Plane Method" shows that the most force-saving bowing path should locate in the lower part of this plane. The analyses of "Helmholtz Motion" and "Schelleng Diagram" indicate P and its range is in direct ratio with volume, velocity of bow, the approaching degree of the bow to the bridge and has some relationship with the quality of string and bow.

国内近期出现了用物理模型来研究小提琴运弓问题的尝试本文第一部分首先指出握弓类似于一个以***(F3)为支点的跷跷板，主要以食指(F1)和小指(F2)的施力配合，产生握弓力矩M；随后用"P-x-M直线法"证实：演奏下弓是M随的***而逐渐增大并转换方向的***，此***取决于P、弓的重力和重心；并首创"P-x-F平面法"，在x，F1，F2空间中证实：省力的运弓路径应在该平面中处于较低的位置第二部分通过分析"赫尔姆霍茨运动"和"Schelleng图表"指出：P及其变化范围和音量、弓速、弓与琴码的接近程度成正比，并与琴弦和弓自身的性质有关

For me a pivot, I may support the terrestrial globe

给我一个支点，我可以撑起地球仪

Too mechanical. Give me an old-fashioned tetragon on a central pivot every time.

太呆板了。每次都给我看一个建在中轴上的四角大楼吧。

Above all, the pivot issue of this thesis is to synthesize the linear backbone motif of P. syringae, a trisaccharide structure of Rha(1→3) Rha(1→2)Rhap.

基於上述各点，本研究之方向为合成出丁香假单胞菌中主链的部分，即Rha(1→3) Rha(1→2)Rhap的三醣重复键结结构。

Trunnion Bascule bridges are named after the their trunnion bearings or pivot and counterweights, which are hidden out of sight.

它是因埋藏在下的耳轴轴承和平衡锤来命名的。

At 43 seconds in the video we watch Frank pivot and turn his shoulders on his two-handed backhand.

在43秒的位置我们来看弗兰克双反的转体和转肩动作。

This paper also explores some guidelines after opening flood discharge gate of the water diversion pivot on low water.

并通过水工模型试验研究成果的分析，探讨了建在多沙河流卵砾石河床上的低水头引水枢纽闸后防冲设计的指导原则。

But when all is said and done, economic development is the pivot.

但是说到最后，还是要把经济建设当作中心。

The frame and sash guides have interacting guide surfaces (28 and 29) which are in sliding contact and between which relative movement occurs during opening and closing of a window sash mounted by the pivot.

窗架和窗框导件有相互作用的导面（28和29），导面（28和29）在由枢转机构安装的窗户开启和关闭时滑动接触，并且在两者之间发生相对运动。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。