| 1. | When an object is in circular motion , it need centripetal force
本java程式描述物体作圆周运动时的物理量- -向心力 |
| 2. | The extra coordinate is precisely the coordinate needed to describe motion within the four - dimensional anti - de sitter spacetime
这额外的坐标正好符合需求，它能描述物体在四维反德西特时空中的运动！ |
| 3. | It allowed a description not only of how objects move through space and time but of how space and time themselves dynamically evolve
它不仅可以描述物体如何穿越时空，也可以描述时间和空间本身如何演变。 |
| 4. | Describing the shape , size , color and function of objects to your child can help him become a better observer and listener
具体地跟孩子描述物体的形状、大小、颜色和功用，有助于训练孩子成为敏锐的观察家及聆听者。 |
| 5. | In the movement modeling , the paper proposes a method used as describing the phenomenon of object movement , that is , using texture mapping method to describe the collision response of object
在运动建模中，提出了一种用来描述物体运动现象的方法，即用纹理映射法来描述物体的碰撞响应。 |
| 6. | ( 3 ) the methods of determining the degree of ii ? curves based on the boundary of objects and tightly fitting objects with ip curve are proposed . the algorithms would help to fit and describe objects automatically by computer
这为计算机自动选取适当次数的隐含多项式曲线拟合与描述物体提供了依据，同时减少了图像物体识别中人的参与。 |
| 7. | Sound synthesis techniques for physical model are research subjetcs based on acoustics and elastic dynamics and mathematics and signal process . they start from a continuous model for the vibrating body , given by partial differential equation dependent on elastic dynamics , and take its initial and boundary conditions , as well as excitation functions into account
基于物理模型的声音合成技术是建立在声学、力学、数学和信号处理等理论基础之上的一门科学，它主要根据力学原理，通过振动偏微分方程、振动体的边界条件、振动的初始条件和激励条件来描述物体的振动物理特性。 |
| 8. | The physical models for those sound synthesis methods can exactly describe musical instruments ' s fundamental and harmonious and inharmonious frequencyies , as well as their nautral sounding process . they can be played like real musical instruments , representing players ' s strength , velocity and pattern , as well as emotion . so , the methods are playing very important roles within the sound synthesis domain currently , with mpeg4 published and improvement of computer ' s computational efficiency
由于它可以精确地描述物体的发声及其发声过程，精确地再现乐器的基波、高次谐波、非谐波以及asdr过程，象真实乐器一样可以表达演奏者的演奏力度、速度、风格和情感，随着计算机处理速度的提高，尤其是mpeg4技术的公布，这种方法日趋活跃，成为目前乐器仿真、声音合成的研究热点。 |
| 9. | Integrating the quality of rough sets which is good at dealing with imprecise data with that of mathematical morphology , describing object structure quantificationally , it overcomes the subjectivity of fuzzy mathematical morphology and provides a very powerful and flexible tool for image processing
该方法结合了粗糙集理论擅于处理不精确不完整数据的特点和数学形态学擅于定量描述物体形状结构的特性，克服了应用模糊形态学时存在的主观性和经验性，有较强的实用价值。 |
| 10. | However , they have been developing for a relatively shorter time as excellent methods , since 1970 ' s when they were proposed . nowadays , they still have several imperfects in princilpes and applications . one of those is that fundamental model of one or multi - dimensional pde have disadvantages in some degree , another is that it is difficult to construct maths equations of irregular boundary conditions and excition functions
作为一种可以精确描述物体发声而有广阔发展前景的技术，物理模型的历史还相对比较短暂，可以说它生于1970年代，培育于1980年代，成长于1990年代，至今尚未成熟而处于发展期，其主要标志是理论上的不完善和应用上的不足。 |
