把计数器拨到零,你就会知道录音从哪儿开始.Set the counter to zero and you'll know where the recording starts.通过发动机的放射强度可用闪光计数器来确定.The radiation intensity through the motor is determined with a scintillation counter.盖革计数器示出放射性粒子的高浓度.The ...
腺嘌呤:在DNA和RNA中发现的含氮的碱基 ( 6 - 氨基嘌呤 ).Adenine A nitrogenous base ( 6 - amino - purine ) found in DNA and RNA.用增压等离子体熔炼含氮的铬锰奥氏体不锈钢,不锈钢氮含量达0.57%~0.74%.Austenitic chromium manganese stainless steel with 0.57 % ~0.74 % nitrogen...
在怀俄明州,消防员还在为扑灭这两场大火而奋战。In Wyoming, firefighters are still battling the two blazes.当消防员到的时候,火已经快灭了.When the firemen came the fire has burned down.消防员花了两个小时才把传动带切断,把他救了出来。It took firemen two hours to cut through the drive ...