It introduces the principle of hardware choice and summarizes the design and realization of the test system,and then it dwells on the definitions expressions arithmetic and importance of throughput frame-loss-rate latency and back-to-back the four performan.
文中介绍基于IXP2400网络测试系统的研究价值及选型原则;概述其设计与实现;讨论吞吐量、丢帧率、延迟、背对背四个性能指标的定义、公式及算法,并简要阐述了其测试目的及重要性;既而通过与官方测试结果进行分析对比,验证了方法及该测试系统的可用性、正确性。
One is with the back towards XiangYu , the other is "with the face towards XiangYu .
对《史记·项羽本纪》“马童面之”的“面之”来历有不同解释,传统说法中,有解释为“背对项羽”的,也有解释为“面对项羽”的,肖振宇先生则坚决否定了传统说法,提出“仔细观看项羽”的新解,并认为“根据字义、文义和语言规律”,此论新则新矣,可是根据对词语意义、上下文义辨析以及语言使用规律分析,笔者觉得此说有悖于词语意义和语言使用规律,传统解释才更合理。
Vis-à-vis-Prevention of Abnormal Mediation;
“背对背”调解的弊端及其矫正浅议
Having the back showing or in view of the observer.
背面的显露出背面的或背对观察者的
moving or facing away from each other.
背向对方移动或背对对方。
Willful betrayal of fidelity, confidence, or trust;perfidy.
背叛对忠诚、信任或信赖的有意背叛；背信弃义
A betrayal of trust or confidence.
背信对信赖或信任的背叛
A basket carried on a person's back.
背篓背在背上的篮子
a breach of loyalty, trust, protocol, etc
不忠、 背信、 背约等
Square back: Synonymous with "flat back".
方背:与平背同义。
directed or facing toward the back or rear.
朝向或者面对后面、背面。
Our house backs on to the beach.
我们的房子背对着海滩。
He turned his back to the wall.
他转过身去背对着墙.
Keep the sun behind you when you're taking a photo.
拍照时要背对着太阳。
We sat down on the grass with our backs to the wall.
我们背对墙坐在草丛中。
Relativity violates common sense.
相对论违背人们的常识。
Don't slouch! It's bad manners and bad for your back.
别弯腰驼背!这样没礼貌而且对你的背不好。
Timon: Wrong! When the world turns its back on you, you turn your back on the world.
丁满：错！当整个世界都背对着你的时候，你也把背对着整个世界好了。
Background paper
背景文件、背景材料
The children carry the bag on the back.
孩子们把书包背在背上。