平衡

The authors investigated the singular limits of stiff relaxation and dominant diffusion for general 2×2nonlinear systems of balance laws, that is,τ=o,ε→ 0, the relaxation time τtends to zero faster than the diffusion parameter ε. If there exists a priori L∞ bound that is uniformly with respect to ε for the solutionsof a system, then the solution sequence converges to the corresponding equilibrium solution of the system.

研究一般扩散占优的2×2双曲平衡律系统奇异松弛极限，用补偿紧性方法，在松弛时间τ比扩散系数ε趋于零快时，即τ=o，ε→ 0时，得到其解的整体存在性一般框架：如果上述系统的解存在对ε一致的先验L∞估计，则其解序列收敛于上述系统的对应平衡状态解。

After the airdrop experiments of the system of the projectile and speed-down parachute, the balance velocity obtained from the optics apparatus on the ground、the balance spinning speed obtained from the gyroscope on the projectile and the image obtained from the infrared detector on the projectile are all used to simulate the six-dimension exterior trajectory of the projectile and identify the roll damping moment derivatives, and the identification can safely come to a conclusion that the absolute value of roll damping moment derivatives from the engineering calculation are on the low side.

对卷弧尾翼弹与减速伞系统进行空投试验，由地面光测系统给出平衡落速、弹上陀螺给出平衡转速、弹上红外探测器拍摄地面图像判断弹的姿态。通过六自由度弹道模拟，对弹滚转阻尼导数进行参数辨识，得到工程估算所得滚转阻尼导数绝对值偏小的结论。 5。对空投试验中出现弹姿态摆动现象，从受力分析及红外图像分析两个方面进行探讨，给出合理解释，并根据分析对弹外形进行修改，在后来的试验中收到很好的效果。

It is necessary to improve human acclimatization and strengthen the studies on impact of environmental changes on China\'s food security.

因此，加强环境变化对粮食供需平衡的影响研究，对深入认识我国粮食供需平衡的稳定性具有重要的现实意义和理论价值。

How long would it reach the balance? It was dependent on the annealing temperature and the content of acetanilide.

达到平衡的时间与热处理温度和乙酰苯胺的质量分数有关，温度越低，达到平衡的时间越长，反之越短。

Therefore, with an alkaline substance can eat vegetables, fruits, can hardly be achieved by dietary acid-base balance and nutrient balance.

因此，若能吃点含碱性物质的蔬菜、水果，就能达到膳食酸碱平衡及营养素的平衡。

It is suggested that the contributions of the pre-equilibrium fission can be ignored for the projectile with low or medium incoming energy to the target in actinium family, and even with high energy to the target in sub-actinium family.

对锕系核来说，在中低能的情况下，可以忽略预平衡裂变过程的影响；而对Pb等重核来说，即使在激发能比较高的情况下，也可以忽略预平衡裂变的贡献。

Though clubs have, at most, completed half-a-dozen Premier League games, Liverpool have been breached nine times already as Rafael Benítez fumbles for the balance between discipline and an enhanced adventurousness.

尽管如此，整个联盟里，有差不多6支球队深受卫线问题困扰，由于拉法贝尼特斯始终无法平衡球队的攻守平衡，利物浦队本赛季就已经丢了9球。

Land surface temperature is an important parameter of energy balance of land surface and plays an important role in the interaction between land surface and atmosphere, and has important significance for energy balance on land surface, widely applied in many fields especially aerography, geology,hydrology,ecology and so on.

地表温度是地表能量平衡中的一个重要参数，它在地表与大气相互作用过程中起着重要的作用，对地表能量平衡的研究有着重要的意义，特别在气象、地质、水文、生态等众多领域有着广泛的应用需要。

This article elaborated the construction principle of two pipe jacking methods——Sludge-liquid balance method and air-pressure balance method , introduced the main equipments used, discussed the construction technology and the treatment measures, then summarized and evaluated the construction effects as well as the merits and disadvantages.

本文结合工程实例，论述了顶管施工中泥水平衡顶管法和气压平衡顶管法两种顶管法的施工原理，对其主要设备及作用进行了简单介绍，对顶管施工中技术及问题处理措施进行了详细阐述，并对施工效果和两种顶管法施工中的优缺点进行了总结和评价。

Shipping airscrew is static balancing appearance is one kind uses the instrument device that test shipping airscrew spends evenly.

船舶螺旋桨静平衡仪是一种用来测试船舶螺旋桨平衡度的仪器设备。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷