sulfur-free的意思|示意

The aim of this research was to decrease the residual of sulfur dioxide and control the release of free sulfur dioxide in malolactic fermentation.

本文研究目的是在发挥二氧化硫的作用下，尽量地减少其残留量和控制游离二氧化硫在苹果酸乳酸发酵中的释放。

Considering the very short particle residence time in the free-fall reactor, air was directly used as carrier gas to study the fast pyrolysis and sulfur evolution of coal under oxidizing atmosphere.

充分利用煤颗粒在自由落下床反应器中停留时间短的特点，直接用空气做载气，对自由落下床反应器中煤在氧化性气氛下的快速热解行为和硫的变迁进行了研究。

"We make very clean, sulfur-free hydrocarbons that drop directly into the existing infrastructure for the production of diesel fuel," said William J. Sims, the chief executive of Joule.

“我们将干净的不含硫的碳氢化合物直接投放到目前已有的生产柴油的设施中，”Joule的行政长官William J . Sims说到。

"We make very clean, sulfur-free hydrocarbons that drop directly into the existing infrastructure for the production of diesel fuel," said William J.

“我们将干净的不含硫的碳氢化合物直接投放到目前已有的生产柴油的设施中，”Joule的行政长官William J。

Meanwhile, the removal of the free sulfur from the chalcopyrite will facilitate the ion diffusion and the further oxidative solution of chalcopyrite.

同时，清除黄铜矿表面氧化溶解产物——单体硫后，有助于离子扩散和黄铜矿的进一步氧化溶解。

The general domestic and aboard situation for free-cutting steel is reviewed. The kinds for free-cutting steel and the production process of sulfur free-cutting steel are emphasized.

综合介绍了国内外易切削钢的现状，重点介绍了易切削钢的种类及硫易切削钢的生产工艺。