Water fleas daphnia magna was fed both toxic alga microcystis aeruginosa ds and nontoxic alga m . aerztginosa 573 for 7 ~ 14 days under laboratory condition 摘要用铜绿微囊藻有毒株ds和无毒株573喂养大型? ,观察微囊藻对虫体的生长和繁殖的影响。
Acoustics - determination of sound insulation performances of enclosures - part 1 : measurements under laboratory conditions for declaration purposes iso 11546 - 1 : 1995 ; german version en iso 11546 - 1 : 1995 声学.密封罩隔声性能测定.第1部分:实验室测量
The sg - iii laser driver facility now under construction is a significant project in china , it is used to start thermonuclear reaction by generating high power laser beams under laboratory conditions 神光iii激光装置是我国在建的一项重大的工程项目,其作用是在实验室条件下产生高能量激光,从而驱动热核聚变。
Although there are many reports that yuri geller , among others , was able to make a table float or control the roll of a 2 ) die , no one has ever been able to 3 ) duplicate such 4 ) feats under laboratory conditions 虽然很多报导表示,尤里杰勒等人能够让桌子飘浮在空中或是控制骰子的转动,但是没有人能够在实验室的情况下重覆这些绝技。