终止和解除劳动合同的翻译是不是都是contract termination

contract terminated把

也可以用discharge

劳动合同 usually is employment contract.We don't use labour contract very often.
终止 is terminate (v) or termination (n).This is most commonly used.
解除 is discharge (both v and n).Also,we can use withdraw in some circumstances.

termination of labor contract
terminate labor contract