Each usually comes with a diagram, marking the position of the tiny specks of carbon that can be seen when viewed through a "loupe", the jeweller's 10x magnification tool.
每张通行证通常会配有一张图表，记录着钻石上微小的碳质瑕疵的位置，通过珠宝商特制的一种10x倍率的“放大镜”能看到这些瑕疵。
Researchers in California, Oregon and Washington noticed specks of sulfur compounds, carbon and other byproducts of coal combustion coating the silvery surfaces of their mountaintop detectors.
研究人员在加里福尼亚、俄勒冈、华盛顿发现硫化物、碳及其他燃烧副产品在其山顶的银色探测器上留下了斑点。
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