B You can say a minus B is a plus minus B and we know how to add vectors and we know what minus B is.
可以把A减b看作a加负，我们既知道怎么做加法，也知道负b是什么。
Agile talks about small team sizes with the magic Numbers of 7 plus minus 2. Agile also recommends whole teams.
敏捷认为小团队的人数规模应该是在魔法数字7上加减2。
When we spoke I was very happy to hear that while he was kicking around ideas for a new film, he also had an idea to pitch me for an animated short that Gnomon could produce, entitled Plus Minus.
当我们交谈的时候我非常开心直到他正在为下一个电影构思，他同时也有一个想法提案我做一个动画短片并且由Gnomon制作，题目是Plus Minus。
The aircraft was subjected to temperatures of minus 65 degrees and plus 120 degrees.
这架飞机经受过零下65度和零上120度的考验。
Plus and minus signs were used in 1514 in Holland.
1514年，荷兰开始使用加号和减号。
The margin of error was plus or minus three percentage points.
误差幅度在三个百分点左右。
Bees are capable of addition and subtraction — using colors in the place of plus and minus symbols.
蜜蜂会做加减法——它们用颜色来代替加号和减号。
This technique uses a computer program that tracks and calculates how fast particles move, and is accurate to plus or minus 20 per cent, reports NPR.
这项技术使用电脑程序来追踪和计算粒子移动的快慢，然后每一分精确的加上或者减去20，得出NPR。
I am doing this for plus one minus one like sodium chloride.
我正在这样做，因为就像氯化钠那样一正一负。
That looks improbable. The return from equities comprises the dividend yield, plus dividend growth, plus or minus any change in the rating (the price-dividend ratio).
股票收益包含股息生息率，加上现金股利成长率，加上或减去评定等级的变化(价格股利比率)。
Quantity: Quantity, unless otherwise arranged, shall be subject to a variation of 5% plus or minus at Sellers' option.
数量：除非另作安排，数量可能由卖方选择作加或减5%的变动。
The survey has a total margin of error of plus or minus 2.6 percentage points, larger for subgroups.
该调查错误率是加上或减去2.6%，对次级群组错误率幅度更大。
The plus or minus 1 comes in because our scale is no more accurate than one gram.
加减一公斤，是因为天平的精度，不能小于1公斤。
It had a margin of error of plus or minus 3 percentage points.
其正负误差的幅度为3个百分点。
What this magical number represents - 7 plus or minus 2 - is the number of items we can hold in our short-term memory.
这个神奇数字(7正负偏差2)代表着我们的短期记忆能记多少。
The results had a margin of error of plus or minus 3.2 percentage points.
调查结果的误差为正负3.2个百分点之间。
By convention, these graphics are usually triangles that point to the right for closed or down for open; or plus and minus signs, where plus means closed and minus means open.
按照惯例，通常使用向右的三角形取代closed，向下的三角形取代open；也可使用加减号，加号表示closed，减号表示open。
So this is a hard prediction what the period of an oscillation - should be — 21.5 plus or minus a half second.
因此这是个艰难预测，震荡的周期，应该是-，21。5加减0。5秒。
Uh, I'm going to add the two together, m2 plus or minus 1 gram.
我把这两个加一起，等于372，and，so，we，get，m2，is，about，372,加减1公斤。
These correspond to the plus and minus signs that control code folding.
这些小三角对应于控制代码合并的加减符号。
The new individual will, in theory, be as fit as the parents, plus or minus a small variance caused by the mutation.
理论上说来，新的个体是和双亲一样适应的，由于变异或增或减会有些微小的变化。
Harris Interactive said the results have a sampling error of plus or minus 1.2 percentage points.
哈里斯互动表示该调查结果会有正负1.2个百分点的采样误差。
The researchers found that some 13% of women who started at a normal, healthy weight maintained it to plus or minus 5 pounds during the 13-year period.
研究人员发现，在这13年中，大约有13%的女性从一开始就维持在正常的，上下浮动在5磅内的健康体重。
The telephone poll's margin of error is plus or minus 4%.
此次电话民调的误差幅度约为正负4%。
The survey's sampling error is plus or minus 3 percentage points for the overall responses and plus or minus 5.5 percentage points for the questions broken down by race.
调查的整体回覆采样误差率为正负3%，按照种族划分的调查采样误差率为正负5.5%。
You may think that the uncertainty in there equals the square root 1 of 372 plus or minus 1 1 divided by 186 plus or minus 1.
你也许认为这个误差,=372加减1的,平方根1,除以186加减。
The poll has a margin of error of plus or minus 2.2 percentage points.
这一民意调查的误差幅度在正负2.2%以内。
The poll's margin of error was plus or minus 7.5 percentage points.
民意调查的误差幅度大约在7.5%左右。
The poll's margin of error was plus or minus 7.5 percentage points.
民意调查的误差幅度大约在7.5%左右。
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