A one-mile area around the wreck is still off limits...沉船方圆一英里内仍然禁止进入。It is difficult to define the detection limits obtained by chelation - solvent extraction.确定螯合 -- 溶剂萃取法所得到的检测限颇为困难.Fraternizing with the customers is ...
Please describe the characteristics of hydroponic and front views of marketing.试论述水培花卉的特点?你对其市场前景有何看法?Nickel ( Ni ) absorption and accumulation in tea plants were studied by hydroponic and pot experiments.通过盆栽和水培试验,研究了镍元...
局部地方白云石和硬石膏也是重要的胶结物.Locally dolomite and anhydrite are important as cements.在局部地方白云石和硬石膏也是重要的胶结物;还有少量自生石英.Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.结构状硬石膏、香肠状和网眼状构造本身...