The largest terrestrial planet, Earth has a diameter only one quarter as great as the diameter of the smallest Jovian planet, Neptune, and its mass is only one seventeenth as great.
最大的类地行星地球的直径仅仅是最小的类木行星海王星的四分之一，而且地球的质量仅仅是其质量的十七分之一。
It turns out that the diameter is actually 2.5 centimeters.
它的直径实际上是 2.5厘米。
The maximum penetration depth of gas flow is increased with the increase of gas momentum while the diameter of oxigen gunjet keeps constant.
气流的最大穿透深度随气体动量的增加而增加，而氧气喷枪的直径保持恒定。
This arc is 65 times larger than the diameter of our solar system.
这个弧形比太阳系直径的65倍还要大。
You may ask me, Why didn't you give us the error in the diameter?
你也许会问，为什么不给出直径的？
Cut the yarn approx. 1 "longer than the diameter of your circle backer."
将毛线剪为比圆直径约长1英寸的线段。
the ratio of the diameter of the glass to the width of the circular shaking;
葡萄酒杯的直径与圆周晃动的宽度的比率；
The veteran in velvet found that the diameter of the thermometer was one meter.
穿天鹅绒的老兵发现温度计的直径为一米.
The veteran in velvet found that the diameter of the thermometer was one metre.
穿天鹅绒的老兵发现温度计的直径为一米.
Generally, the size of the hole should be about two-thirds the diameter of the pumpkin.
一般来说，这个洞的直径大约为南瓜直径的三分之二左右。
One millimetre (or the diameter of the head of a pin) is equal to one-million nanometres.
1毫米(或一个大头针头部的直径)等于一百万纳米。
The devil took out a huge diamond while saying to the king, "Measure the diameter of it."
魔鬼取出一块巨大的钻石对国王说：“量量它的直径。”
This Mosaic spans a slice of space that is equal to about a third of the diameter of the full moon (10 arc minutes).
这些镶嵌的空间切片的跨度相当于一个满月直径的三分之一(10弧分)。
But doubling the diameter of the telescope's mirror, without changing its design, would increase its weight fourfold.
但是当望远镜镜片直径翻一番时，如果设计不变，其重量会增加四倍。
Also known as the Cygnus Loop, the Veil Nebula now spans nearly 3 degrees or about 6 times the diameter of the full Moon.
面纱星云也被称为天鹅座环，现在的视角跨度近3度，即大约6倍满月的直径。
Because these tubes are a thousandth of the diameter of carbon fibres, they can slip into the microscopic Spaces between them.
因为纳米碳管的直径仅是碳纤维直径的千分之一，它可以穿过碳纤维中的细缝。
Their study involves particles of silver — 1/50,000th the diameter of a human hair — that are injected into the bloodstream.
他们的研究将相当于人类头发丝5万分之一大小的银粒子注射入血流。
Last month the Washington University surgeons drilled a small burr hole, about the diameter of a pencil, into the patient's skull.
上个月华盛顿大学的外科医生用钻孔器在这个病人的头骨上钻了一个洞，直径大约和铅笔一样。
From knowing the diameter of the Earth's orbit and the apparent angular movement of the star, we can calculate the distance to it.
在知道了地球轨道的直径和恒星变化的角度，我们就能计算出它的距离。
Croswell believes we should define a planet simply - as something that goes around the sun and has the diameter of Pluto or more.
克罗斯维尔认为，我们对行星的定义应当简化，即行星是一种周期性围绕太阳旋转的星体，其直径不应小于冥王星的直径。
Early jet engines had narrow inlets and were very noisy, but as the diameter of the fans at the front increased, the engines became quieter.
早期的喷气式发动机进气口狭窄且噪音巨大但是随着前部风扇直径的增大发动机变得越来越安静。
A hidden device above the screen is tracking Daniel's eyes as they follow the train and measuring the diameter of his pupils 50 times a second.
在屏幕上方有一个隐藏的装置，在小丹尼尔的眼睛跟随火车的运动时，跟踪他的眼睛，并且在一秒钟内，测量了他的瞳孔的直径50次。
Both nebulae are remarkably symmetric, round, and similar in size, some 2 light-years across or about 2, 000 times the diameter of Neptune's orbit.
两个星云均圆形、对称，而且大小相仿，直径约2光年或约为海王星轨道的2000倍。
As if that were not enough of an impact, sunscreens increasingly contain nanoparticles, smaller than one one-thousandth the diameter of a human hair.
就像是怕以前作用还不够似的，现在防晒霜遮阳剂包含的纳米粒子越来越多，比人类头发直径的千分之一还小。
Stars range in size from neutron stars, which can be only 12 miles (20 kilometers) wide, to supergiants roughly 1,000 times the diameter of the sun.
恒星的尺寸范围从仅有12英里宽(20公里)的中子星到大约1000倍太阳直径的超大恒星。
Stars range in size from neutron stars, which can be only 12 miles (20 kilometers) wide, to supergiants roughly 1, 000 times the diameter of the sun.
恒星的尺寸范围从仅有12英里宽(20公里)的中子星到大约1000倍太阳直径的超大恒星。
It holds 99.8 percent of the solar system's mass and is roughly 109 times the diameter of the Earth -about one million Earths could fit inside the sun.
太阳的质量占太阳系总质量的99.8%，其直径大约为地球的109倍，差不多一百万个地球才能填满一个太阳。
It holds 99.8 percent of the solar system's mass and is roughly 109 times the diameter of the Earth -about one million Earths could fit inside the sun.
太阳的质量占太阳系总质量的99.8%，其直径大约为地球的109倍，差不多一百万个地球才能填满一个太阳。
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