一份新的分析指出，这样做并不是一种好的策略，指出总的碳影响变得更大--特别是如果此类其他来自于页岩层。
The new US analysis suggests this may not be a sensible strategy, given that the total carbon footprint appears bigger - especially if the gas comes from shale formations.
采集疑似危险废物含铬碳渣的样品，检测其浸出液中的总铬和六价铬含量，确定其性质，分析其污染特征；
Gather the sample of suspected hazardous waste (the chromium dreg), measured chromium in the lixivium, confirmed its property, analyzed its characteristic of pollution.
此方法弥补了以往球墨铸铁总碳量分析结果严重偏低及不稳定的缺陷。
It overcomes some defects of previous methods, and commonly gives out lower and unstable results.
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