生根的基质应当是湿润, 透气良好和消过毒的.The rooting medium should be moist, well aerated, and sterile.琥珀酸盐在以后的氧消耗中是最有效的基质.Succinate was the most effective substrate in following oxygen consumption.卵巢皮质的基质中有许多卵泡.The ovarian follicles are e...
有时,在局部速度中可能出现瞬时脉动.Sometimes temporal fluctuation may take place inthe local velocity.各种激发源形成脉动,以产生间歇的辐射.The different excitation sources are pulsed to give intermittment radiation.我们欲求的因子必然有两次脉动.Our desired operator must...