约等于

这面积，约等于平行四边形的一半，我能用向量表示它。

So , the area is approximately equal to one half of the area of a parallelogram that I could form from these vectors .

后者由于电子未扰轨道纵向速度比较低，已有的单粒子理论中所作的电子纵向速度约等于光速的假设不再成立。

Thus the assumption commonly used in previous single particle theories that the axial electron velocity is approximately equal to the speed of light no longer remains exact .

八公里约等于五英里。

Eight kilometres is roughly equivalent to five miles .

在科学与工程学领域，e代表自然对数的基数，约等于2.718。

In science and engineering , ' e ' refers to the base of natural logarithms , approximately 2.718 .

然而，P值的变化仅造成强不相容及中等不相容元素的浓度小的变化，可以认为强不相容与中等不相容元素的P值约等于D0。

However , abundances of moderately and highly incompatible elements only show small variation when P values are different .

证明了该最佳门限约等于0.8（N+1），这里N是参考单元数。

It is demonstrated that the optimal threshold is approximately equal to 0.8 ( N + 1 ), where N is the number of reference cells .

用AFMⅡ型原子力显微镜测得微透镜阵列的表面粗糙度Ra约等于0.9nm，并通过液体的表面张力理论分析了微透镜的形成机理。

The surface roughness of microlens is measured by an atomic force microscope ( AFM - ⅱ) . Micro-lens forming mechanics has been analyzed by surface tension theory .

TF卡是一种全新的超小型大容量移动存储卡，大小约等于目前市面最流行的SD记忆卡的1/4。

TF card is a new ultra-small high-capacity removable storage card , which size in the market is equal to one quarter of the current most popular SD memory card .

通过对小鼠肝细胞悬液的实际检测，其二、四、八倍体肝细胞核的DNA含量比值约等于2和4，提出数码相机可用于细胞DNA含量的检测观点。

After detecting suspension of murine hepatocyte , we verified that murines ' rates of DNA contents in amphiploid , tetraploid octoploid hepatocytes were approximately 2 and 4 . So we put forward that the DNA contents of the cells can be examined by digital camera .

当参与结晶的碳原子数约等于原油中蜡的平均碳原子数的3／4时，EVA降凝剂的降凝效果最好。

When carbon number of alkyl chain of EVA , which takes part in crystallizing , is about equal to three fourths of average carbon number of wax , the effect of EVA pour point depressants is best .

实验中，观察到两种粉尘火焰，即湍流火焰和层流火焰，火焰形态转变对应的点火延迟时间约等于1.1s，即粉尘云湍流运动强度为10cm/s。

The transition occurs when the ignition delay time is about 1.1 s , corresponding to a turbulence level of 10 cm / s.

初步分析认为Gliese581g与恒星的距离为0.15个天文单位（一个天文单位约等于地球至太阳的平均距离），较近的轨道距离使得该行星公转一周只需37天。

Estimates suggest Gliese 581g is 0.15 astronomical units ( One astronomical unit is the average distance between the Earth and sun ) from its star , close enough to its star to be able to complete an orbit in just less than 37 days .

250克一盒的售价17欧元（约等于21美元）。

A 250-gram box is 17 euros ( $ 21 ) .

三分之一约等于零点三三。

A third is almost the same as point three three .

苏联重量单位约等于磅。

A Russian unit of weight equal to approximately 36 pounds .

南非使用的土地面积单位约等于英亩。

A South African unit of measure equal to about 2 acres .

混合箱的容积约等于41立方英尺。

The capacity of the mixing cask is about forty-one cubic feet .

你撞他的速度得达到1.1马赫（1马赫约等于340M/S）。

you 'd have to hit him at approximately ... Mach 1.1 .

一斤约等于一又三分之一磅。

One jin is about one and a third pounds . Korean ginseng

法国旧制面积单位；约等于一英亩。

A former French unit of area ; equal approximately to an acre .

但平均下来，它将约等于那个数。

But on average , it 's going to be about that number .

里是中国的距离单位，约等于500米。

' Li'is a Chinese unit of distance equivalent to about 500 meters .

第13与14切片间平均水平最长径约等于平均垂直最长径。

14 and NO. 13 was equal to the maximum vertical length of section .

东亚重量单位约等于（待查表）盎司。

A unit of weight used in east Asia approximately equal to 1.3 ounces .

她徒步走过了2650英里（约等于4265公里）长的太平洋山脊步道。

she hiked the 2650-mile Pacific Crest Trail .

注二1？约等于1.20337金衡安士。

One tael equals approximately 1.20337 troy ounces .

光在真空中一秒钟内所走的距离；约等于（待查表）公里。

The distance light travels in a vacuum in one second ; approximately 300,000 kilometers .

拉伸载荷模量约等于比例极限内的弹性模量。

The tensile modulus approximately equal to the compressive modulus of elasticity within the proportional limit .

这意味着向量，约等于。。。，因为用了线性近似，约等于。

U That means my vector U , well , approximately because I am using this linear approximation .

每根石柱高13英尺（4.1米），约等于两个高个子男性的身高之和。

Each standing stone measures 13ft ( 4.1m ) - roughly the combined height of two averagely tall men .