特种有机硅氟聚合物保护砂岩文物的研究 关键词:有机硅氟聚合物;砂岩;防水;保护 [gap=729]Key Words:organic fluorosilicone polymer;sand stone;water resistance;protection
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water resistance tester 水阻表 ; 防水检测仪
Salted Water Resistance Test 耐盐水腐蚀试验 ; 耐盐水腐化试验
Water-resistance 耐水性 ; 吸水率 ; 防水深度 ; 抗水性
·2,447,543篇论文数据,部分数据来源于NoteExpress
It is thought that these grooves help to channel water through the mouth and out the gill slits, thereby reducing water resistance.
人们认为这些沟槽有助于将水从嘴中输送到鳃裂外,从而减少水的阻力。
Water resistance: 3 atmospheric pressures.
耐水性:3个大气压力。
The water resistance of each watch is tested by extremely sophisticated devices.
采用极其复杂的装置来测试每一枚腕表的防水性能。
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