减法

The way to find an unknown addend from one addend and the sum is called subtraction. This is the essence of subtraction.

归纳减法的意义：已知两个加数的和与其中的一个加数，求另一个加数的运算，叫做减法。

We can use software to do most calculation but not use hardware. The most basic circuit doing calculation in the computer is binary adder. For example, we can use of addition to do subtracting, continuous adding to do multiplication, and continuous subtracting to do division.

在电脑的世界里，可以做任何数字系统且复杂的演算，但是大多数的演算都藉由软体来解决，而非用硬体直接进行各种演算，电脑的硬体或其他数位电路在做算术运算时，最基本的电路往往只有二进位加法器而已，至於减法可藉由补数的加法解决，乘法等於连续的加法，除法则是连续的减法，可见加法器在运算数位系统中的重要性。

The relationship between elastic strain energy and the reduction coefficient can be used as criteria in slope stability analysis using strength reduction method.

研究结果表明：采用强度折减法，当边坡处于稳定状态时，折减系数增大引起边坡变形增大，导致边坡体弹性应变能随之增大；但是，边坡岩土体能够承受的弹性应变能是有极限的，当折减系数增大到某一值时，边坡体的弹性应变能达到极限，再增大折减系数将导致边坡失稳破坏；边坡体弹性应变能与折减系数服从指数关系；利用弹性应变能与折减系数关系曲线得到的边坡安全系数与采用其他经典的方法所得边坡安全系数基本一致，弹性应变能随折减系数变化而变化的规律可以作为边坡稳定性强度折减法分析的失稳判据。

The purpose is to inspect the grade differences on time of mental addition and mental subtraction of pupils from three grades as well as grades differences of arithmetic time and integration time. The results show that mental arithmetic time of pupils from Grade 2, 4 and 6 decreases with the increase of grades.In the non-carry mental addition of 1-digit number and multi-digit number, menta...

研究结果表明，2、4、6 年级小学生口算时间随年级的增高而减少；在一位数加多位数不进位加法口算中，口算时间差异主要源于运算时间差异和整合时间差异；在一位数加多位数进位加法口算中，口算时间差异源于运算时间差异；在多位数减一位数不借位减法口算中，运算时间年级差异不显著，而整合时间存在显著的年级差异；在多位数减一位数借位减法口算中，口算时间的年级差异主要表现为运算时间的差异，而整合时间差异不显著。

We've learned the way to do subtraction problems.

我们已经学过一些减法的计算方法，现在继续学习有关减法的知识。

A new method of clustering based on mountain clustering and subtractive clustering is proposed.

在对山峰聚类和减法聚类进行分析之后提出了一种通过划分网格、规约数据、减法聚类3步完成的聚类算法。

On the other hand, the known number in addition becomes the unknown number in subtraction.

在加法中是已知的，在减法中变成未知的；在加法中是未知的，在减法中变成已知的。

Our within-subject analysis also showed activation of brain areas associated with negative emotions, including right insula and putamen (11, 38), during the high-stress relative to the low-stress task. The observed activation in the dorsomedial prefrontal cortex ACC and precuneus parietal cortex may ref lect mental arithmetical performance (39) and assessment of the mental state (40) during the serial-subtraction task, whereas the CBF reduction in pre- and postcentral gyri and temporal cortex may ref lect more frequent verbal movement and greater auditory stimulation during counting backward versus serial subtraction.

我们的在之内主题分析也显示了脑子区域的活化作用与消极情感相关，包括正确的脑岛并且putamen (11， 38)，在期间高注重相对低注重任务在连续减法任务期间，被观察的活化作用在dorsomedial前头叶外皮ACC和precuneus头顶骨外皮可以ref lect精神算术对精神状态(40)的表现(39)和评估，而CBF减少前和中央后回和世俗外皮可以ref lect更加频繁的口头运动和更加伟大的听觉刺激在计数期间落后对连续减法。

There was no significant gender difference.4. The correlations of latencies and errors were significant between addition and subtraction.

加法的反应时和减法的反应时之间存在着极强的正相关关系，加法的错误率与减法的错误率之间也存在着较强的正相关关系。

The correlations of latencies and errors were significant between addition and subtraction.

加法的反应时和减法的反应时之间存在着极强的正相关关系，加法的错误率与减法的错误率之间也存在着较强的正相关关系。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。