用residual gases造句子,“residual gases”造句
來源:國語幫 2.23W
3、It is necessary to solve openning-tube sampling problem for the mass-spectrometer analysis of residual gases in sealed vacuum devices.
1、A flame produced in the breech of a gun by ignition of residual gases.
2、flareback:a flame produced in the breech of a gun by ignition of residual gases.