加减

It is generally difficult to get analytical solutions of the stochastic differential equation's water quality model. What is more, as to the issue like the initial boundary result of a convection-dispersion equation, it is even more difficult to change the random factors into the uncertainty.

NSFEM法是把Neumann展开式引入以解决矩阵求逆的效率问题，如果对每一次随机抽样，只需形成刚度矩阵，进行前代、回代以及矩阵乘和矩阵加减，而无需矩阵分解，则可大大减少工作量。

Cold cough: cough, sputum color thin white T-ching nasal flow, cold Anhidrotic,微白tongue, you can use apricot Su Powder.

风寒咳嗽：咳嗽，痰稀薄色白，鼻塞流清涕，怕冷无汗，舌苔微白，可使用杏苏散加减。

Produced by the calculator, able to function in the arithmetic can be simple.

java制作的计算器，能实现加减乘除功能的简单能。

Will function set points, including 16 fixed points of the arithmetic operations function.

定点数函数集，包括16位定点数的各种加减乘除运算函数。

Vc small calculators, and the arithmetic function to achieve.

vc小计算器，实现加减乘除功能。

Achieve a simple calculator functions, arithmetic, but also a number of other mathematical calculations, such as involution.

实现了一个简单的计算器的功能，可以加减乘除，还要其他一些数学运算，如乘方等。

This is my VB prepared in a simple short practice Primary Mathematics small software can be used for primary method of arithmetic speed training.

这是本人用VB编写的一款简易短小的小学数学练习小软件，可用于小学生加减乘除法的速度训练。

This is my VB prepared in a simple short practice Primaary Mathematics small software can be used for primary method of arithmetic speed training.

这是本人用VB编写的一款简易短小的小学数学练习小软件，可用于小学生加减乘除法的速度训练。

We cannot always have associative law for operations, for instance, we did not have this law for mixed addition and multiplication,neither for subtraction, 2+3 2+1≠(2+3)(2+1)=5 3,（2-3）- 2≠2-（3-2）,this is why we have to set the rule in operations that "doing inside bracket at first and out side afterwards, doing multiplication and dividing first and addition and subtraction afterwards".

注意运算的结合律并不是永远对的，比如加法和乘法的混合运算就没有结合律，减法也没有，2+3 2+1≠5 3，（2-3）- 2≠2-（3-2），因此我们运算中总是规定先括号内再括号外，先加减后乘除。

When you mix the two and consider the effects of both in operation at once, the result is not necessarily the sum of the parts, but it will bear some relationship to that sum.

可是当我们将两种政策放在一起整体考虑其合力效果时，它将不是简单的加减，虽然与其有相当的关联。

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％。