研究了重金属铜对异毛目纤毛虫多态喇叭虫 ( Stentor polymorphrus ) 的急性毒性影响.The actue toxic effect of heavy metal Cu ~ ( 2 + ) to Stentor Polymorphrus ( Ciliophora, Heterotrichida ) was studied....
Police closed nearby Dickinson Avenue where a state police explosives expert neutralized it four hours later.四小时后,州警方的拆弹专家排除了这起“诈弹”.Following the discovery of the explosives the president cancelled his visit to the local...
游客可以前往像纳帕谷酒乡这样远离城市喧嚣的地方游览。Tourists can visit outlying areas like the Napa Valley Wine Country.追求放慢生活节奏的人群渴望告别喧嚣的城市，过简单的生活。Downshifters are being tempted to leave the sophisticated city and go simple.他基本上一直对喧嚣的议会政治漠不关心.He...
...perhaps the foremost realist painter of our times.也许是我们时代最重要的现实主义画家We are optimist and realist.我们是乐观主义者,又是现实主义者.I see myself not as a cynic but as a realist...我觉得自己不是一个愤世嫉俗的人，而是一个现实主义者。More extreme attitudes are somet...
Properties: White powder with Specific Gravity of 7.10, easily absorb moisture, without flammability and causticity.物理性能: 白色粉末,比重7.10, 易吸湿, 无可燃性和腐蚀性.Ammoniacal synthesis procedure has some dangerous characteristics, for ...