1) the comparision of the covert quality and object quality
折质比
2) Referring ratio
折合比
3) flexural compression ratio
折压比
1.
5% flexural compression ratio,and reduce 8.
4%,抗折强度提高77%,折压比提高64。
4) ratio of compressive strength to flexural strength
压折比
1.
The results show that polyacryamide can not only effectively enhances flexural strength, flexural fatigue property, flexural toughness and impingement toughness, but also decreases the ratio of compressive strength to flexural strength.
结果表明,聚丙烯酰胺对提高混凝土的抗折强度、弯曲疲劳特性、弯曲韧性和冲击韧性有显著作用,并可降低压折比。
5) the ratio of compressive strength to flexural strength
压折比
1.
Relevant test and analysis show that polyacrylamide can not only effectively enhances flexural strength,bond strength,flexural toughness and abrasion resistance,but also decreases the ratio of compressive strength to flexural strength,permeability and shrinkage.
结果表明 :聚丙烯酰胺对提高抗折强度、粘结强度、弯曲韧性和抗磨性有显著作用 ,并可降低压折比、渗透性和收缩性。
2.
Relevant test and analysis show that polyacryamide can not only effectively enhances flexural strength , bond strength and flexural toughness, but also decreases the ratio of compressive strength to flexural strength.
结果表明聚丙烯酰胺对提高抗折强度、粘结强度和弯曲韧性有显著作用 ,并可降低压折
6) tradeoff ratio
折衷比
补充资料：电子荷质比
| 电子荷质比 electroncharge-mass ratio of 电子电量e和电子静质量m的比值e／m。电子的基本常数之一。又称电子比荷。1897年J.J.汤姆孙通过电磁偏转的方法测量了阴极射线粒子的荷质比，它比电解中的单价氢离子的荷质比约大2000倍，从而发现了比氢原子更小的组成原子的物质单元，定名为电子。 精 确测量电子荷质比的值为－1.75881962×1011库仑／千克，根据测定电子的电荷，可确定电子的质量。 20世纪初W.考夫曼用电磁偏转法测量β射线（快速运动的电子束）的荷质比，发现e／m随速度增大而减小。这是电荷不变质量随速度增加而增大的表现，与狭义相对论质速关系一致，是狭义相对论实验基础之一。 |
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参考词条