如果最低一级的维度被抑制了，那么它是否真正必要呢？
If the lowest level of a dimension is suppressed then is it really needed?
在T551和T561的基础上，研制出新的高效金属减活剂(铜腐蚀抑制剂)，解决了高硫极压剂的不足，使铜腐蚀达到1级。
On the basis of T551 and T561, a new metal deactivator with high efficiency (copper corrosion inhibitor) have been preparated by Weihua co.
讨论了放大级中寄生振荡的成因，提出了在放大级中放置一闪耀光栅来抑制常规带寄生振荡的方法。
A method for suppressing the regular bands parasitic oscillation caused in the sequence laser amplification by placing a glaring grating is introduced.
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