在火星上，直径小于5公里的陨石坑相对较少。
On Mars, there are relatively few craters less than 5 kilometers in diameter.
这两种物质分别排列在直径小于50纳米的球体中。
The two substances themselves are arranged in tiny spheres less than 50 billionths of a metre across.
而当粒子直径小于光波长时，情况就倒过来了。
But when the particle size is smaller the wavelength of light, the reverse is true.
腺瘤的典型表现是直径小于2cm、切面呈黄*色。
Such adenomas are typically less than 2 cm in size and yellow on cut surface.
正常的淋巴结应该是质软、粉红色、直径小于1厘米。
The node should normally be soft and pink and less than 1 cm in size.
用这个激光聚焦系统，激光微束仪能获得直径小于0。
Using this focusing system, the laser microbeam instrument has got the focal spot size of less than 0.
亚波长光纤是一种直径小于其所传输光波波长的光纤。
Subwavelength diameter fiber (SWDF) is a kind of optical fiber that its diameter is smaller than the wavelength propagated by it.
本发明提供了数均直径小于1微米的纤维的非织造纤网。
A nonwoven web of fibers that have a number average diameter of less than 1 micron.
天文学家很少发现直径小于一百米（300英尺）的物体，并记录下来。
Very few objects smaller than 100 meters (300ft) across have been spotted and catalogued by astronomers.
佩普基诺西瓜的直径小于1 厘米，外形和全甜西瓜非常类似。
The Pepquino melon, less than a centimetre in diameter, most closely resembles the All sweet variety of watermelon.
导管是对酸雨敏感的一种组织，受害材导管的弦向直径小于健康材。
Vessel is known to be sensitive to acid rain, its tangential diameter of diseased poplar decreased than that of healthy poplar.
有效成分适合地以平均直径小于125微米的微粒或微囊形式提供。
The active component is suitably provided in the form of microparticles or microcapsules having an average diameter of less than 125 microns.
目的探讨保留腮腺主导管的腮腺部分切除术在治疗肿瘤直径小于2。
Objective to investigate the feasibility of partial parotidectomy without ligation of the parotid main duct fort he treatment of benign parotid tumors which is less than 2.
土卫四(狄俄涅)，右边那颗，直径小于土卫六的四分之一，没有明显的大气层。
Dione, on the right, has less than a quarter of Titan's diameter and has no significant atmosphere.
点样和溶剂挥干一体化，七通道可同时自动点样，斑点直径小于3毫米。
Point sample and solvent evaporating integration, seven channels can be automatically sampling, spot diameter less than 3 mm.
本项研究的重点是所谓的PM 2.5，即直径小于2.5微米的微粒。
The research focused on particles less than 2.5 micrometers in diameter, known as PM2.5s.
图中左边的样本，曾经被认为是一种具有硬壳的埃迪·卡拉藻类，其实际直径小于一毫米。
The object on the left, less than a millimetre across in reality, is an example of what were once thought to be the encysted forms of Ediacaran algae.
在上下文中，术语“小型”应该理解为表示涡轮机转子的直径小于大约10米。
In this context, the term "small" should be understood to mean a turbine rotor of less than about 10 meters in diameter.
但是只一根直径小于半毫米的光纤电缆就可以比由铜丝制成的粗电缆承载更多的信息。
But a single optical fiber with a diameter of less than half a millimeter can carry more information than a large cable made of copper wires.
检测机构会检测直径小于10微米的微粒，即PM 10浓度，并由此判定污染程度。
Authorities measure the concentration of particulates with a diameter of less than 10 microns - so-called PM10 - in the air to determine pollution levels.
直径小于半厘米的浮游植物有能力改变300米宽的热带风暴，因为它们能够改变海水表面的颜色。
Microscopic plants less than half a centimeter across may be able to change the paths of 300-mile-wide tropical storms, due to their ability to change the color of the surface of the sea.
这是指直径小于5毫米的微小的塑料碎片。在化妆品中很常见，如去角质膏、沐浴液和牙膏。
They're small plastic fragments less than 5mm in size. You find them in cosmetic products such as facial scrubs, shower gel, and toothpaste.
事实上，研究人员声称这次工作中用到的红外线摄像头的图像可以精确分辨直径小于3米的物体。
In fact, the researchers say, the infrared vision of cameras used in this work can pinpoint objects less than a meter (3 feet) wide.
纳米技术是科技界的新一轮浪潮，碳、锌和金等多种材料均可制备成直径小于100纳米的颗粒。
Nanotechnology is a new wave of science that deals with particles engineered from many materials such as carbon, zinc and gold, which are less than 100 nanometers in diameter.
在杂志《糖尿病治疗》中（PDF），一组研究人员研究了最容易被忽视的一些微粒——仅限于直径小于2.5微米的。
Writing in the journal Diabetes Care (PDF), a team of researchers looked at the most insidious of these particles -- only those smaller than 2.5 micrometers in diameter.
目前中国使用的PM 2.5(大气中直径小于或等于2.5微米的颗粒物)监测设备和技术主要是依赖进口。
The equipment and technologies that China is using to monitor PM2.5 — fine particles 2.5 microns or less in diameter — are mainly from other countries.
描述比标准方法钻进的井眼尺寸大大缩小的井眼(与套管程序有关)的一种不很精确的术语，通常井眼直径小于6英寸。
An inexact term describing a borehole (and associated casing program) significantly smaller than a standard approach, commonly a wellbore less than 6 in. in diameter.
描述比标准方法钻进的井眼尺寸大大缩小的井眼(与套管程序有关)的一种不很精确的术语，通常井眼直径小于6英寸。
An inexact term describing a borehole (and associated casing program) significantly smaller than a standard approach, commonly a wellbore less than 6 in. in diameter.
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