他将风力公式应用到他的模型中，并假定树枝受到风力作用而断裂的概率是恒定不变的，据此他推导出了达·芬奇公式。
When he plugged that wind-force equation into his model and assumed that the probability of a branch breaking due to wind stress is constant, he came up with Leonardo's rule.
这些物理系统的测试依赖于对作用力、质量和能量守恒定律的标准设计实践。
Design and testing of these physical systems rely on standard design practices that employ the laws of conservation of force, mass, and energy.
我坚信，机械能守恒定理，会起作用，我几乎杀了自己-，近乎杀了自己-，那个球大概15公斤？
I was so convinced that the conservation of mechanical energy was going to work - that I almost killed myself — - not quite — with this huge, 15?
调节器的作用就是保证发电机在输出电能的电压能够保持恒定，保护设备安全运行。
The role of the regulator is to ensure that the generator output voltage to maintain a constant energy, protect the safe operation of equipment.
目的探讨髄腔内恒定低压直流电刺激对家兔桡骨缺损的修复作用及其临床应用价值。
Objective to explore the effect of low constant direct current (LCDC) in the medullary cavity on repairing of rabbit radial defect as to evaluate its clinical value.
介绍了三峡工程船闸区硬性结构面的蠕变试验结果，着重分析了结构面在恒定荷载作用下的蠕变性态。
The creep test results on hard structural plane in TGP s permanent lock regions are represented, and the creep status of structural plane under the acting of a constant load are emphatically analysed.
NO在维持血管章力的恒定和调节血压的稳定性中起着重要作用。
NO plays an important role in maintaining constant vascular tension and regulating stability of blood pressure.
弹簧受压差的作用自动控制阀胆上过流面积的大小，从而使通过阀门的流量恒定。
The role of compression springs bad gall on automatic control valve flow area of the size, so that a constant flow through the valve.
目的：探索恒定磁场对股骨头坏死相关重要致病因素的抑制作用，从而阐明其治疗股骨头坏死的机制。
AIM: to investigate the inhibitory effect of permanent-magnetic field on the important inducement of femoral head necrosis, and clarify the therapeutic mechanism.
结论：恒定磁场的杀菌作用与菌株特征、环境温度及处理时间关系密切。
Conclusion: the sterile effect of stable - magnetic field was closely associated with the strain characteristics, environment temperatures and disposal time.
目的：探讨恒定磁场的杀菌作用及其影响因素。
Objective:To explore the sterile effect and influence factor of stable-magnetic field.
结论恒定均匀磁场能有效地抑制IS O致动物心肌损伤，对心肌有一定的保护作用。
Conclusion It is suggested that HSMF having enough energy may effectively restrain the exacerbation of myocardial injury by ISO and may have effect of myocardial protection.
结果表明河口地形边界和非恒定潮流作用对河口最大浑浊带的悬沙富集有重要贡献。
The results suggest that non steady current and boundary conditions are important to producing the estuarine turbidity maximum zone.
某舰的螺旋桨尾轴长期处在恒定载荷作用下，虽然尾轴应力在弹性极限范围内，但是尾轴局部还是很容易发生微量的塑性变形。
Tiny deformation will appear in the local of the propeller shaft of certain ship which is endured an invariableness load, although the shaft stress is within the elastic limit range.
分析了带电粒子受到洛伦兹力和其他恒定外力作用下的运动情况，导出了轨道方程和曲率半径的计算公式。
The motion of charged particle acted upon by Lorentz force and other external force are analyzed, calculating formulae of orbit equation and curvature radius are derived.
目的探讨不同照射时间的恒定磁场作用对小鼠空间记忆形成的影响。
Objective: To discuss the effects of stable magnetic field on space memory in mice.
当运行在定速巡航状态和恒定的压力作用在油门踏板上时，此时驱动桥能有最佳燃油经济性。
Transaxles give their best fuel economy when operated in the top cruise gear and with steady pressure on the gas pedal.
结论恒定磁场促进骨组织的成骨作用，抑制骨分解，是其治疗骨质疏松良好效果的部分机制。
Conclusions Permanent-magnetic field could accelerate bone formation and inhibit bone absorption, thus being the partial mechanism for osteoporosis management.
通过自由入渗与恒定土壤空气压力入渗试验结果对比得出，研究入渗问题必须考虑禁锢土壤空气压力的影响作用。
The experiment for comparing the infiltration affected by entrapped air with free filtration was carried out. It is found that the effect of air pressure is not negligible.
一般而言，工程结构和构件总可以看成是在恒定初始载荷和附加可变载荷的联合作用下工作。
Generally speaking, engineering structures and components can be always looked on as working under invariable original loads and additional variable loads.
目的研究旋转恒定磁场对5-氟尿嘧啶（5-FU）损伤小鼠造血功能的保护作用。
ObjectiveTo study the hemoprotective effects of rotating and stationary magnetic field(RSMF) in mice treated with 5-Fluorouracil(5-FU).
许多学者对于波浪与开孔沉箱的相互作用进行了系统的研究，但这些理论大都是基于开孔沉箱前的水深是恒定的。
There have been many systematic researches on the interaction between waves and perforated caissons, but most of these researches are based on the constant water depth in front of the caisson.
简要分析了在考虑重力作用的情形下，带电粒子在恒定磁场和振荡电场中的运动状态，求得了其运动方程，并就拉莫频率和振荡频率的关系进行了讨论。
The motion equation of the moving charged particle is obtained, and the relation between the Lamor frequency a and the oscillation frequency wis discussed as well.
具体操作为：80V的恒定沉积电压作用1分钟；
The subsection constant voltage has three procedures:Constant voltage(80V)functions 1 minute;
实验结果表明，随着晶体管沟道长度的减小，内部节点电容对功耗恒定特性的作用逐渐减小，DDCVSL与SABL具有相近的防DPA攻击特性。
The experimental results demonstrate that DDCVSL and SABL all have a high DPA-resistance with the shrinking channel-length of the transistors.
在健康人中，胰岛素调节的作用下血糖可以维持在恒定水平上，而24小时的自然节律下脾脏中胰岛素的分泌在不同的时间段分泌量不同。
In healthy people, blood sugar levels are kept under control by insulin, which the pancreas releases in varying amounts at different periods during a 24-hour natural cycle.
在健康人中，胰岛素调节的作用下血糖可以维持在恒定水平上，而24小时的自然节律下脾脏中胰岛素的分泌在不同的时间段分泌量不同。
In healthy people, blood sugar levels are kept under control by insulin, which the pancreas releases in varying amounts at different periods during a 24-hour natural cycle.
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