PAR is usually measured by a single band sensor and can also be calculated by multispectral data.
PAR通常由单波段的PAR传感器直接测量，也可以由多光谱数据计算。Buckyballs, as they became known colloquially, are football-shaped molecules made of 60 carbon atoms linked by single and double bonds.
现在已经成为通俗语的巴克球，是一种由单双链连接的60个碳原子组成的足球状分子。The tube assembly consists of an Unipolar X-Ray tube with cooled anode at ground potential and a high voltage receptacle socket.
管路安装由单级X射线管，地电位的冷却性阳极和高电压插座组成。Objectives which consist only of one lens can be used for visual and photographic observations .
由单透镜组成的物镜可作目视和照相观测用。Many say they do not feel threatened by recent events, as the attacks were an isolated incident carried out by a single individual.
很多人表示他们并没有被最近的事件吓到，因为袭击是由单个人发动的独立事故。well logging interpretation technique is developing from single well logging interpretation toward the multi-well logging interpretation.
测井解释技术正逐渐由单井解释向多井解释研究发展。Polysaccharide: Any of a large class of long-chain sugars composed of monosaccharides.
多醣：由单醣形成的长链食糖中的任何一种。By contrast, the conformational properties of a polymer are determined by rotations about single bonds.
与其相反的，一个聚合物的构象性质是由单键的轮换决定的。Histologic features show multiple, intradermal foci of amorphous deposits surrounded by mononuclear cells and multinucleated giant cells.
组织切片下，在真皮层内可见多处由单核球与多核巨细胞围绕的无定型沈淀物质。