your that x(你那X) construction
frozed sex-controlled x-sperm
JX- 300X control system
m_x~βand m_X~(ω_X)coefficients
NO(X) control technology
Office Active X Control
Shewhart (average)X control chart
substitution space P(X)X(n)
VCXO (Voltage Control X-tal Oscillator)