RRA的例句大全

t73 and rra treatment improve the grain boundary character, which is help to inhibit hydrogen embrittlement and decrease anodic dissolution rate, then to improve the sccr of the alloy.

T73和RRA时效处理改善了合金晶界特性，有助于阻止氢脆、减缓晶界阳极溶解速度，提高合金的抗应力腐蚀能力。

the electrical conductivity of cold rolled 7055 alloy decreased with the increase of rolling reduction and increased for t6 and rra temper alloys due to the lattice distortion and coarse precipitates from dislocations.

随变形量的增加，冷轧态7055铝合金的电导率逐渐下降，而T6和RRA态合金的电导率却逐渐上升。在同样变形量条件下，RRA态合金具有最高的电导率。

the residual heat removal pump is a main component of rra and is the only nuclear secondary pump which is installed inside the nuclear island except the main pump and which significantly affects whether the reactor can shut-down.

余热排出泵是余热排出系统（RRA）的主要组成部分，是除核主泵之外唯一布置在核岛之内的核二级泵，是关系到核岛能否安全停堆的核心装备。

when the retrogression temperature was at 453k and 473k, the retrogression curve can be dealt with in three stages and the rra treatment can be simply considered as a two step aging process.

当回归温度为453K和473K时，回归曲线由三部分组成，回归再时效曲线由两部分组成。

when the aging treatment is rra treatment ( retrogression and re-ageing): 120 ℃× 22h+ 180 ℃× 30min+ 120 ℃× 22h, the synthetic properties is best.

综合性能最佳的热处理工艺为：120℃×22h+180℃×30min+120℃×22h的回归再时效处理（RRA）。

the relative rates of absorbing nitrogen ( rra) in all treatments decreased with the development of rice during the whole lifetime, the greater the ratio of bt to total nitrogen applied, the faster their declining speed became.

结果表明：（1）各处理水稻相对吸氮速率随生育进程而降低，其降低速度随氮素基、蘖肥占总施氮量比重增大而加快。

when the regression temperature was 473 k, in comparison with retrogression at 453 k, the retrogression valley and peak promoted at the retrogression curve, and the hardness peak promoted at the rra curve.

当回归温度为473K时，虽然与在453K回归和再时效行为的趋势相同，但在回归曲线上，硬度的谷值和峰值时间都提前，并且硬度峰值稍微降低；

the results showed that the strength of 7055 alloy could be increased slightly after cold rolling and t6 aging at a smaller reduction, then decreased at a heavier rolling reduction, and always reduced with the increase of rolling reduction for the rra temper alloy.

实验结果表明，对于冷变形再T6时效的7055铝合金，随变形量的提高，强度先略有上升，而后缓慢下降。RRA态合金强度随变形量增加而持续下降。

some key mechanisms are emphasized to support qos such as mpls, rra module, mistake control and so on, and some different mechanisms and policies are discussed provided by stream media qos assurance from diverse technology views in ip net-works, mobile networks and terminal equipments.

通过重点阐述MPLS、RRA模型、差错控制等支持用户QoS的关键技术，从不同的技术角度，探讨了在IP网络、无线移动网络和终端中为流媒体业务提供各种QoS的机制与策略。

Based on the theory of quantitative risk assessment, a regional risk assessment ( RRA ) methods put forward.

基于定量风险评价的基本原理,提出一种区域风险评价方法.

The design proposal of the pilot operated safety valve localization production was studied based on the former modular analysis for the nuclear auxiliary system such as RRA and RCV.

根据模块化设计方法，提出了核辅助系统的先导式安全阀国产化设计方案。