both ranging and chaining are obstructed
both ranging and chaining are free
ranging is obstructed but chaining is free
chaining is obstructed but ranging is free
Discuss in Comment
"Scientists dream about doing great things. Engineers do them."
PSC Advertisement ⏩ | Federal PSC | Bagmati PSC | PSC Karnali | PSC Lumbini | PSC Sudurpaschim | PSC Gandaki | PSC State 1.