issues at the forefront of government policy政府决策中首当其冲的问题He exerted considerable influence on the thinking of the scientific community on these issues.他极大地影响了科学界对这些问题的看法。The new current affairs series promises to address ...
A pall of oily black smoke drifted over the cliff-top.一团油腻的黑色烟雾飘到悬崖顶上。When the barge reached the shrine, acolytes removed the pall.当驳船抵达圣地时，辅祭除去了柩衣。We don't want to cast a pall over the festivities.我们不想给庆典蒙上阴影。...
一氧化碳可把有柠檬酸钠作防凝结剂的血液由血红色变成鲜紫红色.CO can turn citrated blood from blood red to cherry pink.高分子电解质作为凝结剂援助更低白矾和辅助化学制品必需的剂量.Polyelectrolytes as coagulant aids lower the required dosages of alum and auxiliary chemicals....