These provide base for the correct measurement and valuing of graptolite reflectivity.从而为笔石反射率的正确测定和取值奠定了基础.The black graptolite shale facies indicate a deep - water, half enclosed and anoxic sedimentary environment.中奥陶世...
The nest contained eight little mice that were naked and blind.窝里有8只还没长毛、眼睛尚未睁开的小老鼠。The house was completely overrun with mice.这房子简直成了老鼠的天下。The noun " mouse " is the singular form of " mice " .名词mouse是 mice 的单数形式....