primary compound

DDTs was the primary compound in soil samples, accounting for 98.9% of the pesticides POPs. The source of DDTs was garden soils in city parks.

其中滴滴涕占总有机氯农药类POPs物质的98.9%，是北京地区土壤中残留有机氯农药类POPs物质的主要成分，城市公园、园林土壤是城市滴滴涕的主要污染源。

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Apochromatic lens: Compound lens corrected for chromatic aberration, i.e. the three primary colours, red, green and blue are corrected. Also called Apochromat.

电视信号彩色校正器复消色差透镜：矫正色差的复合式透镜：即是红、绿和蓝三原色的色差都已矫正。

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The spatial similarity of groups were displayed by GIS using compound of three primary colors to represent three dimension configuration of group similarity transformed from intra_group climatic variable mean matrix.

各类型的气候因子平均值经矩阵转换构成三维相似空间，分别以三原色的色调代表各气候类型在不同维上的相似距离，用GIS以合成色彩表示各气候类型的空间相似程度。

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The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.

化合物庚烷的主要用途是作为双基推进剂的增塑剂.

词典精选例句

Firstly, the primary compound structure of laminated piezoelectric ceramic actuator and pall frictional damper is present.

文中首先提出了叠层压电陶瓷驱动器与Pall摩擦耗能器复合的基本结构；

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The primary oilfields have been attaining the high water-containing exploitation period nowadays, and the manner of the oil driven has transferred from water to polymer or ternary compound matter.

近年来，我国主力油田已进入中、高含水开采期，驱油方式已由原来的水驱向聚合物驱和三元复合驱油技术发展。

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