例句與造句

1. We used mechnical rubbing and polishing replace handwork to reduce total thickness variation ( ttv ) of cdznte wafers and surface damage layer . by comparing different polishing methods , we find out an appropriated chemical mechical polishing ( cmp ) for czt wafers
   采用了機械拋光代替了手工拋光，解決了手工拋光造成的表面不均勻以及表面損傷層過厚的問題，并比較了機械拋光與化學機械拋光，初步摸索了合適的化學機械拋光工藝。
2. This paper describes the con - cept of udb , together with its advantages and disad - vantages , and demonstrates the formation damagemechanism during ubd , e . g . , the lack of filter cakeprotection , temporary over - balanced condition , pol - ishing effect and surface damage caused by frictionbetween bit and hole wall and poor cooling , and otherdamages , etc
   介紹了欠平衡鉆井的概念以及優(yōu)點和缺點，闡述了欠平衡鉆井對地層的損害機理為由于缺少起保護作用的濾餅，臨時的超平衡造成對地層的損害；天然滲析效應(yīng)；拋光、表面損害以及其它損害。
3. It's difficult to find surface damage in a sentence. 用surface damage造句挺難的
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