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關(guān)注：1
2013-05-23 12:21
求翻譯：密度，指單位體積的重量，在拍形、厚度相對(duì)固定的情況下，可用重量代換。根據(jù)動(dòng)能定理和牛頓第二定律，重量大者動(dòng)能大，擊球后反彈速度快，利于短距離彈擊或被動(dòng)擊球，但不利于加速，高速變向也因動(dòng)能(慣性)大而變得困難。隨著直拍橫打和弧圈技術(shù)的發(fā)展，正反面雙貼膠皮已呈絕對(duì)主流，膠皮重量的增加，大幅提高了底板 floor的輕量化要求。是什么意思？ 待解決
 懸賞分：1
- 離問(wèn)題結(jié)束還有
密度，指單位體積的重量，在拍形、厚度相對(duì)固定的情況下，可用重量代換。根據(jù)動(dòng)能定理和牛頓第二定律，重量大者動(dòng)能大，擊球后反彈速度快，利于短距離彈擊或被動(dòng)擊球，但不利于加速，高速變向也因動(dòng)能(慣性)大而變得困難。隨著直拍橫打和弧圈技術(shù)的發(fā)展，正反面雙貼膠皮已呈絕對(duì)主流，膠皮重量的增加，大幅提高了底板 floor的輕量化要求。
問(wèn)題補(bǔ)充： |
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2013-05-23 12:21:38
Density refers to the weight of unit volume, shot shape, thickness is relatively fixed, the available weight of substitution. According to the theorem of kinetic energy and Newton's second law, the weight of the kinetic energy, rebound fast after hitting the ball, which will help the short-range she
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2013-05-23 12:23:18
Density refers to the weight per unit of volume, in a relatively fixed shape, thickness, weight available for generation. Based on kinetic energy theorems 2 and Newton's law, the weight of a kinetic energy of the ball, after fast anti-pop-pop-ups, and beneficial for short distances or passive shot,
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2013-05-23 12:24:58
The density, refers to the unit volume the weight, in pats in the shape, the thickness relatively fixed situation, available weight substitution.According to the kinetic energy theorem and the Newton second law, the weight big kinetic energy is big, after hits a ball the resilience speed to be quick
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2013-05-23 12:26:38
Density, weight per unit of volume, in the case of relatively fixed shape, thickness, weight substitution available. According to kinetic energy theorem and Newton's second law, weights, kinetic energy, after hitting the rebound speed fastest, hitting the bombs hit to short distances, or passive, bu
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2013-05-23 12:28:18
正在翻譯，請(qǐng)等待...
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