Most familiar chemical changes do not involve so spectacular a liberation of energy as the zinc-sulfur reaction . 大多数化学反应并不象锌-硫反应那样会放出如此引人注目的能量。
Selenium was discovered by him over one hundred years ago as an atomic element closely associated with sulfur and tellurium . 硒作为与硫和碲关系密切的元素在一百年前被他发现。
Sodium, sulfate, magnesium, calcium, carbonate, bicarbonate, chloride, and boron should be determined in a water analysis . 水质分析要测定钠、硫、镁、钙、碳酸盐、重碳酸盐、氯和硼的含量。
Sulphur, a ubiquitous element in the lower atmosphere was identified from the outset as a predominant component in the stratospheric aerosol . 在底层大气中处处存在的元素硫从一开始就被认为是平流层气溶胶的主要成分。
Other atmospheric pollutants such as oxidants and sulfur oxides may produce adverse cardiovascular effects, but the evidence is limited . 其他空气污染物，如氧化剂、硫氧化物可能对心血管产生有害影响，但这方面证据不多。
At pegmatite contacts the composition changes to chalcopyrite, millerite, pyrite, and violarite accompanied by magnetite and hematite . 在伟晶岩接触带，硫化物成分变为黄铜矿、针镍矿、黄铁矿及硫镍铁矿，伴生有磁铁矿和赤铁矿。
it should be noticed that while there is more tonnage of so2 than h2s emitted, more sulfur is deposited in the atmosphere in the form of h2s. 应该注意，二氧化硫的排出吨数虽比硫化氢的多，大气中以硫化氢形式储存的硫则较多。
The effect of sulfur oxides could be anticipated from the earlier experience in the acute smog episodes described above and from the studies in great britain and japan . 硫氧化物的效应可根据上述早期的急性烟雾事件以及英国和日本的研究进行预测。
Tertiary amines, although basic, fail to yield amides, presumably because they cannot lose a proton, (to stabilize the product)after attaching themselves to carbon or to sulfur . 叔胺虽然呈碱性，但不能产生酰胺，这大概是因为当它们连在碳或硫上之后，无法失去一个质子（以稳定产物）的缘故。
Extending duty concession for ultra low sulphur diesel 延续超低硫柴油的税务优惠
