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The simulation shows that the angular rate of moving projectile can be calculated directly by using this kind of measurement unit and the influence of the gravity acceleration on calculating angular rate and acceleration can be eliminated effectively.

计算机仿真分析显示这种测量方案直接解算的是弹体运动角速度，并可以有效地消除重力加速度分量对解算弹体运动角速度及线加速度的影响。

So when calculating the limit of the torque, we should consider to compensate it with the moment and accelerative torque of the paper.

同时，文中给出了原纸卷加速转矩和转动惯量的计算公式以及相应的离散化方程。

Then,based on the gap acceptance theory and probability method,the capacity calculating method of minor stream is deduced on the condition of two vehicle streams,and theory model ...

首先分析了交叉口车流的运行特点；然后基于可插车间隙理论和概率论方法，给出两股车流情况下次路车流通行能力的计算方法，并对主路车流车头时距服从M3分布次路车流的理论模型进行了推导；最后对整个交叉口的"冲突交通流-临界间隙法"进行了分析。

Basing on the mechanism of errors in levelling, a rigorous formula is first de- rived for calculating the mean accidental error per kilometer η.

由于σ在目前的一般水准测量作业中还是不能确定的，所以研究j在各种不同情况下略去σ定权，对平差质量所产生的影响。

In this paper, we evaluated the performance of different quantum chemical methods for calculating ^13C chemical shifts of acetylsalicylic acid and its derivatives.

我们用量子化学的方法预测了乙酰水杨酸及其衍生物分子上碳原子的化学位移，并通过比较计算值和实验值得到不同理论计算方法的误差范围。

In this paper, we evaluated the performance of different quantum chemical methods for calculating 13C chemical shifts of acetylsalicylic acid and its derivatives.

核磁共振的谱峰归属对分子结构的确定至关重要，用理论计算方法预测化学位移对谱峰的正确归属是极其有帮助的。

At the same time a new method for calculating activation energy was devised and applied to the new model.

同时还提出一种计算局部临界扩散势能的新方法，并应用于新模型。

The models for calculating formation fracturing pressure are obtained on the basis of fracturing criterion, and the reliability of these models is proved by the comparison of the calculated formation fracturing pressures of several wells in an oilfield with the actu...

结果表明，运用断裂理论建立的破裂压力计算模型由于考虑了裂隙的存在，与地层的实际更为吻合，因而准确性更高，适用范围更广。其计算结果与现场实测值更为接近，从而也验证了模型的可靠性。

In addition, formulas for calculating section stress of members with varying sections are derived, which revise the corresponding formulas in Material Mechanics.

另外，还推导了变截面构件的截面应力计算公式，对材料力学中的相应公式进行了修正。

In addition, some experience formulas for them are regressed. The third chapter establishes a unified S-N curve equation to calculate multi-axial fatigue ultimate strength of concrete considering both the effect of confinement and minimum/maximum stress ratio, based on the triaxial fatigue test data in this paper and the test results under uniaxial and biaxial fatigue loading in previous literatures. Moreover, the consistency of calculating condition fatigue ultimate strength with fatigue life distribution and initial ultimate strength distribution is analyzed.

第二章简要地介绍了本文三轴疲劳试验装置，进行了两向等侧压约束下混凝土立方体试件三轴受压等幅和变幅疲劳试验，分析了三轴受压疲劳破坏机理，给出了相应的疲劳破坏试验判断标准；得到了混凝土在两向侧压约束下单级和多级受压疲劳的变形发展规律，包括最大纵向应变、残余应变、最大纵向应变率和疲劳变形模量等随循环次数的发展规律以及疲劳损伤的演变规律，并给出了相应的经验公式。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。