避免采用灰化消解.Ashing should be avoided.本文研究了湿法灰化火焰原子吸收法测定多种加工食品中的钙 、 镁和铁.Wet ashing and flame atomic absorption determination of Ca, Mg and Fe have been studied.考查了石墨炉原子吸收测定硅铁合金中钼的最佳灰化、原子化条件,酸介质及共存元素的影响.Determination of trace...
现在我们该结束在巴黎的漫游了。It was time now to end our perambulation round Paris.这是去郊区漫游的最好季节.This is the best season for a ramble in the suburbs.他们在乡间随便地漫游.They wandered at large over the country side....
"Daring Adventures" from '86 is a far more cohesive and successful album.1986年发行的《勇于冒险》是一张风格更为统一也更为成功的专辑。the cohesive power of shared suffering共患难的内聚力She sealed the parcel with cohesive tape.她用粘胶带把包裹封起来。...
And how do doctors prevent the spread of typhus?那么医生是如何防止斑疹伤寒的扩散与传播的 呢 ?A typhus epidemic struck in the winter of 1919–20.1919至1920年的冬天斑疹伤寒症流行....illnesses such as smallpox, typhus and the plague.像天花、伤寒和鼠疫这样的疾病Objective ...