1) protecting surface
护面
1.
Discussion on principle and requirement of choice of high-speed flow protecting surface material of silicon powder concrete;
由硅粉混凝土应用中存在的问题论高速水流护面材料选择的原则与要求
2) protective topcoat
保护面漆
3) protecting paper
护面纸板
4) protective material
防护面料
5) arc-protection helmet
防护面罩
1.
In order to protect human eyes from being injured by the arc light and to ensure the working safety of welder, an automatic arc-protection helmet is developed.
所研制出的电弧焊全自动防护面罩成本低、结构简单、性能稳定可靠,其响应时间小于10ms,其整体重量小于0。
6) protected area
保护面积
1.
The paper analyzes the internal relations between "protected radius" and "protected area", and comes to the conclusion of installing the detector in square; the paper also gives the performance criteria of detector distribution.
分析了点型探测器“保护半径”与“保护面积”的内在关系 ,得出了以尽量趋于正方形设置为善的结论 ,并将按“面积”设置纳入受保护半径的制约 ;得出了探测器设置有效 (符合规定 )的直观判定条件。
参考词条
补充资料：漆质藏品保护技术
见漆器保护与修复。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。