The contents of tea polyphenols in tea can be determined with ferrous tartrate colourimetry method.采用酒石酸亚铁比色法测定茶多酚含量.The content of NaCl in soda ash is determined by colourimetry of mercury thiocyanate.作者采用硫氰酸汞比色法测定纯碱中氯化...
Water power schemes ( hydro - electric schemes ) are of two types, high dams or low dams.水力发电工程 ( 水电工程 ) 有高坝和低坝两种类型.Large dams have harmed Siberia's delicate ecological balance.大型水坝对西伯利亚脆弱的生态平衡造成了破坏。The R . A . F .&...
The knee and ankle joints must be immobilized— this usually means up to six weeks in plaster.膝关节和踝关节必须加以固定——这通常意味着要打上6个星期的石膏。The knee and ankle joints must be immobilized — this usually means up to six weeks in plaster.膝...
Heretofore all the campus gossip had seemed merely malicious and disrespectful.在这以前,学校里的一切流言蜚语似乎纯粹是恶意的、无礼的.I think young people are sometimes disrespectful in their speech.我认为年轻人有时说话失礼.I've never been tardy, absent,...
But as with other charitable bodies, these figures mask the true picture.但和其他慈善机构一样，这些数字掩盖了实情。They said the bodies were found when rebels recaptured the area.他们说尸体是在叛军重新占领这个地区时发现的。More bodies have been dug up at the site...