Terms for subject Scientific containing improvements

English	Chinese
a marginal improvement	微不足道的改进
an immense improvement	巨大的改进
Improvement of the efficiency of the machine can be gained by reducing friction.	通过减少摩擦、可提高机器的效率。
There's room for improvement in your work.	你的工作还有改进余地。
This machine is capable of improvement.	这机器是可以改进的。