加减

This event antedates the discovery of America by several centuries.

这件事比发现美洲早几个世纪。背单词诀窍，只需每天5分钟 20世纪最震撼人心的照片加、减、乘、除的表示法

Dynamic performances during sudden changes in load are analyzed and simulated. It emphasizes on the processes of three-phase sudden short circuit in machines terminal and self-excitation capacitor switching off. The effect of the instant at which the induction generator is short circuited on the maximum current is showed.

研究了异步发电机定子机端突加和突减对称负载时的暂态过程，着重分析了三相突然短路和自激电容突然断开时电流变化情况，说明了不同突然短路时刻对最大电流的影响。

Methods Balb/c mice were immunized subcutaneously three times （0,2,4 weeks） with rSj 32 emulsified with adjuvant. Each mouse was infected with （40±1） curacies of Sj （6 weeks）. After 42 days of infection, the mice were killed and the worm number was counted.

用rSj 32×103加佐剂免疫小鼠3次，分别在0、2、4周进行，第6周每鼠经腹部感染（40±1）条日本血吸虫尾蚴，感染后42 d剖杀，计算减虫率。

The experimental study shows that adding of water-re-ducing agent,cellulose and air entraining agent can improve mortar performance from different aspects.If these agents are used separate-ly,their functions are limited even negative.

试验研究表明，掺加适量的减水剂、纤维素和引气剂均能从不同方面对砂浆性能起到一定的改善作用，但单独使用时作用有限，甚至会产生负作用。

Cooper"s frontier romances, Hawthorne"s romances, Stowe"s domestic novels, and Melville"s sea romances fully displayed their understanding of the spirit of the romantic dialectic concept in inheriting tradition and giving play to their talents. Whether its Cooper"s art of redundancy and reduction, or Hawthorn"s art of the real and the subjective, or Stowe"s art of sentimentalizing, or Melville"s art of flux, they all exhibited individual features and the artistic features of their age sharply.

个性化创作赋予美国小说真正的艺术价值，库柏的边疆小说、霍桑的罗曼司、斯陀夫人的家庭小说、麦尔维尔的航海小说充分体现了美国小说家在继承传统和发挥个人才能时对浪漫主义辩证法精髓的领悟，他们的小说艺术无论是加与减，还是虚与实，是煽情还是流动，都体现了鲜明的个人特征和时代共性。

In SPIF process, the loading trajectory is complex and long, the thinning of the sheet thickness is dramatic, and the local deformations are accumulated. So, there are some difficutis in the numeriacla simulation of SPIF. For example, the modeling of SPIF is difficult and the computational efficiency is low.

金属板材单点渐进成形由于自身的特点，如成形过程载荷加载轨迹复杂且长、板材厚度的剧烈减薄变化、以及局部变形累积等，使得对其进行有限元法数值模拟存在建模难度大、计算效率低等难点问题。

Software Description: About AlgeBasics, Teach and learn the basics of algebra including the addition, subtraction, multiplication and division of algebraic terms, order of calculations, simple indices and removal of brackets.

AlgeBasics 教授和学习包括加，减，乘和除代数术语，计算顺序，简单的指数和括号消除在内的基础代数学。

In recent years, various mineral admixtures such as fly ash, blast furnace slag, silica fume along with superplasticizers have been used to produce concrete with high strength and durability.

近年来，人们采用低水胶比，掺加粉煤灰、磨细矿渣和硅灰等矿物掺合料和高效减水剂的方法配制高强混凝土，但对高强混凝土的体积稳定性缺乏系统的研究，在工程实践中高强混凝土的收缩开裂问题也显得比较突出。

Carry truck entry harbor to load or unload and exit harbor, it must make a good book in during the truck entry harbor, finish operation,《goods exit harbor certificate》be provided by goods management department, at the same time, give clear indication of truck's former goods in detail, Through inspection, affirm match with fact, it can be passed,《goods exit harbor certificate》be taken back..

载货车辆进港加载或减载出港的，车辆在进港时应做好登记，作业完毕，由货物管理部门填发《货物出港证》，同时注明车上原有货物的详细情况，经检查，确认与实际相符，方可放行，收回《货物出港证》。

Then base on concept of energy dissipation, hysteretic behaviors of RC material, and experiential factors obtained from shaking table tests with repeated excitation, a deterioration rule for RC column after multiple earthquakes is established. According to the failure mode and damage condition in previous earthquake, the rule makes lateral force-deflection curve of RC column deteriorated by reducing stiffness and strength.

本文再根据能量消耗概念与RC材料之恢复力环特性，及由多次加载振动试验结果所得之经验参数，尝试建立RC柱构件之多次震害后折损规则，依构件破坏模式不同，对每次震后侧力-变形曲线加以刚度与强度逐次折减。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。