X angstrom(s)
The bond length is 1.2 angstroms.
该键长为1.2埃。
埃
长度单位,等于10−10米(即一百亿分之一米),约一个原子大小,符号为Å,尤用于测量电磁辐射波长或原子间距离。；长度单位,等于十亿分之一米(或0.0001微米),用于电磁辐射波长；埃；[医] 埃
A unit of length equal to 10⁻¹⁰ meter (one ten-billionth of a meter), used for atomic-scale distances and wavelengths of electromagnetic radiation.
符号为 Å，1 埃 = 10⁻¹⁰ 米，常用于原子尺度及光波波长。
长度单位,等于10−10米(即一百亿分之一米),约一个原子大小,符号为Å,尤用于测量电磁辐射波长或原子间距离。
A unit of length equal to 10−10 meters (that is, one ten-billionth of a meter), approximately the size of an atom, and denoted by the symbol Å, used especially to measure the wavelength of electromagnetic radiation or distances between atoms.
长度单位,等于十亿分之一米(或0.0001微米),用于电磁辐射波长
a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
The wavelength of green light is about 5,500 angstroms.
绿光的波长大约为5500埃。
用法提示：本句中，angstroms 用作可数名词复数，表示长度单位“埃”。
X-rays have wavelengths ranging from 0.01 to 10 angstroms.
X射线的波长范围从0.01到10埃。
用法提示：本句中，angstroms 用作可数名词复数，表示电磁辐射波长的度量单位。
The radius of a hydrogen atom is roughly 0.5 angstrom.
氢原子的半径大约为0.5埃。
用法提示：本句中，angstrom 用作可数名词单数，描述原子尺度的长度。
The bond length is 1.2 angstroms.
该键长为1.2埃。
dimension可为length、wavelength、diameter等
The atomic radius is measured in angstroms in diameter.
原子半径以埃为单位测量直径。
The molecules are separated by 3 angstroms at equilibrium.
平衡时分子间距为3埃。
grammar · medium
易错句子A angstrom is a unit of length.
正确表达An angstrom is a unit of length.
Angstrom 以元音音素开头，因此应该使用冠词 'an' 而不是 'a'。
grammar · medium
易错句子The wavelength is 5000 angstrom.
正确表达The wavelength is 5000 angstroms.
当表示复数数量时，angstrom 应加 -s 变为复数形式 angstroms，因为它是可数名词。
埃（Å）和纳米（nm）都是长度单位，但1埃=0.1纳米。埃常用于原子尺度，纳米用于纳米技术。
埃（Å）和微米（µm）都是长度单位，但1微米=10,000埃。微米常用于细胞和微生物尺度，埃用于原子尺度。
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