Emitters on trickle system can be blocked by precipitate.灌溉系统中的发射器会被沉积物所堵塞.The flood of cars has now slowed to a trickle.汹涌的车流现在已经变得稀稀拉拉。A trickle of refugees began to flee the country.难民开始三五成群地陆续逃离该国。The difference betw...
The Endo - conversion 、 Exo - yield andExo - selectivity are 96.46 % 、93.12 % and 96.54 % respectively.Endo -THDCPD 转化率为96.46%,Exo -THDCPD 收率为93.12%,选择性为96.54%.EAD was much more readily induced in Mid than in Epi and End...
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...