The frictional resistance can be more dominant than acceleration resistance for a longer fire zone, and acceleration resistance can be more dominant for a shorter one. 在火区长度较大时,摩擦阻力将成为火区阻力的主要部分;
It has shown that HAS shows excellent acceleration effect and corrosion protection, especially alkali resistance at lower temperature. 实验证明在低温下羟胺具有优异的促进作用和耐蚀性,特别是耐碱性。
While measuring the acceleration of gravity on the air cushion slide way, we can? t receive an ideal and satisfying result because of the air resistance. 在气垫导轨上测重力加速度时,受空气粘滞阻力的影响,测量结果并不理想。
Determining the Acceleration of Gravity with Simple Pendulum The resulting length of path is greatly increased, with consequent increase in resistance. 用单摆测重力加速度&一摆球的大小对测量结果的影响结果路径长度大大增长,电阻增大。
Meanwhile it introduces the results of manual coating acceleration test, salt spray test, damp and hot resistance test and the natural exposed test for one year under the various weather conditions. 并介绍其涂覆层经人工加速试验、耐盐雾试验和耐湿热试验的结果,以及在各种气候条件下,经一年的天然暴露试验结果。
A sliding mode extended observer is designed to realize the robust observation of the speed, acceleration and unknown load resistance necessary for speed-tracking control. 通过扩展滑模观测器来实现对所需要的动子速度、加速度和负载扰动的鲁棒观测。
The analogue functional method adopted to measure acceleration of gravity is a new method in accordance with no consideration of air resistance influence in the traditional measurement of acceleration of gravity. 模拟函数法测重力加速度是针对传统的重力加速度测定中没有考虑空气阻力影响而采用的一种新型方法。
Conclusion Administration of SNP during CPB showed no adverse effects on cerebral oxygen metabolism due to the acceleration of cerebral blood flow and reduction of cerebral vessel resistance, in spite of the vasodilatation and the certain reduction of blood pressure. 结论体外循环期间硝普钠的血管扩张效应尽管在一定程度上降低MAP,但由于脑血管阻力降低、脑血流加速而增加全脑血流量,对脑代谢无不良影响。
In addition, this program can be used to predict the vertical acceleration, relative motions, green water, slamming and the increase of resistance in waves. 此外,本程序还可预报垂向加速度、相对运动、上浪、拍击、螺旋桨出水概率以及波浪中阻力增加。
Abscisic acid is a widely distributed plant hormone involved in various physiological processes such as the acceleration of abscission, induction of dormancy, inhibition of seed germina-tion and increasing of stress resistance. 脱落酸是一种广泛存在于植物体内的植物激素,它与植物离层形成、诱导休眠、抑制发芽、促进器官衰老和脱落及增强抗逆性等密切相关。
The definition of the train simulation system is presented. The mathematic model of train running state, which describes the relationships among distance, speed, acceleration and time, is given by calculating the tractive force, the running resistance and the braking resistance. 介绍了列车仿真系统的定义,通过计算机车牵引力、列车运行阻力及列车的制动阻力得出了列车运行中距离、速度、加速度与时间的关系,即列车运行状态的数学模型。
The paper aims at discussing structural performance and operation principle of inertial transform system for vibration angular acceleration transducer of compressive resistance. 本文对压阻式振动角加速度传感器的惯性变换系统的结构特性、工作原理进行了分析讨论。
In the experiment of measuring gravity acceleration with a pendulum, a few error factors are existed, such as complex pendulum, air buoyancy, air resistance and initial displacement. 在利用单摆测重力加速度实验中,有复摆、空气浮力、空气阻力、摆角等多种误差因素。
Pointing out if don't adjust the member reinforcement when have changed the artificial mass and acceleration of model, the model will not reflect prototype's resistance. 指出了改变了模型配重和输入加速度放大倍数,而不改变模型构件配筋,会引起结构构件抗力失真的现象。
Angle. Vibration Angular Acceleration Sensor of Compressive Resistance 压阻式振动角加速度传感器
The acceleration of starting and the acid resistance ability on the run made the differences between the Chinese and the foreign canoeists. Therefore, attention should be paid to advancing these two abilities in speed training for the preparation of the Beijing Olympic Games. 我队与国外主要对手的差异为起动加速能力和途中耐酸能力的不足,提高这两种能力是备战北京奥运准备期速度训练的重点。
A simulation model of acceleration performance and fuel consumption has been developed for tracked vehicles. The model consists of a dynamic turbocharged diesel engine model, a dynamic transmission model and a vehicle driving resistance model. 发展了一个履带车辆加速性能和燃油消耗量的仿真模型,由涡轮增压柴油机动态模型,传动装置动态模型和车辆行驶阻力模型组成。
But for the small asteroids whose gravity acceleration relatively small, gasbag bounce or buffer material plastic deformation resistance is relatively large enough to rebound the asteroid lander back into space. 但对于重力加速度相对较小的小行星,气囊的弹力或缓冲材料的塑性变形阻力相对较大,足以把小行星着陆器反弹回太空当中。
But small unmanned helicopter work Angle acceleration, speed and flight of the uncertainty of plus air resistance, weather factors and external factors such as work environment, all these will make small unmanned aircraft flight path becomes difficult to predict. 但是小型无人直升机工作时的加速度、速度、飞行角度的不确定性再加上空气阻力、天气因素及工作环境等外部因素,所有这些都会使小型无人机的飞行路线变得难于预测。
With the development of MEMS technology the input device of space handwriting is generally MEMS acceleration sensor which is small, high precision and has strong resistance to the external environment interference. 随着MEMS技术的发展,空间手写的输入设备一般选择的是体积小、精度高、抗外部环境干扰能力强的MEMS加速度传感器。
Pointed out the relation between system resistance and its acceleration is linear, therefore defined the resistance index& acceleration, its goal is for the convenience of real-time measuring and fast monitoring. 指出系统抗力与其加速度之间为线性关系,因此定义了抗力指标&加速度,其目的在于方便实时量测和快速监控。
Basing on the flight constraints, the aircraft resistance acceleration-velocity profile reentry corridor is made. By selecting the appropriate resistance acceleration signal as aircraft reference trajectory, we design the reentry guidance trajectory tracking control system of the aircraft. 结合再入飞行约束条件,建立了飞行器的阻力加速度&速度剖面再入走廊,选择适当的阻力加速度信号作为飞行器的参考轨迹,设计了飞行器再入制导轨迹跟踪控制系统。