单词	抽油机效率
释义	抽油机效率医efficiency of the pumping unit
随便看	chemical toxicology of metal chemical trace method chemical tracer chemical tracing chemical trail chemical training chemical transducer chemical transesterification chemical transfer chemical transfer copying process chemical transfer laser chemical transfer process chemical transfer pump chemical transformation chemical transmission Chemical transmission of fiber chemical transmission process chemical transmission substance chemical transmission synapse chemical transmission theory chemical transmitter Chemical transmitters chemical transmitter substance chemical transmitting synapse chemical transport