本文的目的是证明关于结合环可换性的三个定理。
The object of this paper is to prove three theorems of associated ring's commutativity.
装配式成形铣刀由于其可调性和可换性等优点，在加工复杂曲面中得到广泛应用。
The assembly type formed milling cutter is widely applied in manufacturing complicated curve surface because of its advantages of adjustability and changeability.
本文给出了BCH—代数与非负BCH—代数的并代数的概念，并且讨论了拟可换性。
This paper introduced the concept of a union algebra of BCH-algeba and non-negetive BCH-algebra, and discussed quasi-commutativity of (HP) Union algebra.
对接口部分和接长杆而言，特别重要的是径向摆动精度、悬臂长度、振动性能和可换性。
The interface part and extension rod, particularly important is the radial run-out accuracy, cantilever length, vibration performance and replaceable.
换而言之，用描述性文本围绕这些链接。
他们认为如果你对现有的工作不满意，你当然有权利换一项更富有挑战性而且收入更好的工作。
They think if you are not satisfied with your present job, of course you have the right to replace it with a more challenging and better paid one.
但定期证券借贷安排却不同：它是一种以债券换债券的方式，而且目标锁定在那些现金交易以外市场，为它们提供流动性。
The TSLF is different: it is a bond-for-bond arrangement aimed explicitly at providing liquidity to markets beyond those where cash is traded.
再换种说法就是美联储将减少运行正常的银行的准备金，进而进一步减慢他们的资金流动性，来弥补他们对投资银行的贷款。
Or, another way of saying the same thing, the Fed will reduce reserves at healthy banks--thereby worsening their liquidity--dollar for dollar with the loans they are making to the investment banks.
一位女性基金经理说：“如果是男性，你可能认为是运气不好，而换作女性则看作是不稳定的标记。
One female asset manager said: "With a man ... you might dismiss something as a bad day, with a woman it's seen as a sign of instability.
只有通过不断借新债换旧债，意大利才能不被庞大的债务压倒，保持清偿能力，因此拍卖失败将造成灾难性的后果。
Italy depends on rolling over its huge debt load to stay solvent, so a failed auction would be devastating.
Gooze说，“换种想法可能有帮助：用杯子换下奶瓶子是成长发育的一个里程碑，如同由爬学会走，那是值得庆贺的，尽管这有点儿挑战性。”
It might be helpful to think of moving from a bottle to a cup as a developmental milestone, like moving from crawling to walking, which is something to celebrate, even if it has challenges.
也许，纳米墨水最大的优点在于它是暂时性的，可以每6个月左右换一次。
Perhaps best of all the nano-ink is temporary, probably lasting six months or so before needing to be refreshed.
消费者节目Watchdog近期宣称，英国已婚夫妇离婚的可能性高过换银行。
The consumer program Watchdog recently claimed that people in the U.K. who are married are more likely to get divorced than to switch banks.
30岁综合症的一大标志性症状就是认为过往做的所有事情如果换种做法会变得不一样。
Dwelling on all the things that you could have done differently in your life is a hallmark of the pre-30 crisis.
这台洗衣机出售时曾担保过不出机械性故障——我要换一台新的。
This washing machine was guaranteed against mechanical failure— I demand a new one!
“市场换技术”的可行性一直成为各方争论的焦点。
The feasibility of "Market for Technology" is always the focus of argument.
本文对锯齿型通道内流动与换热的周期性进行了数值模拟。
The periodicity of the flow and heat transfer in a corrugated channel is numerically investigated.
本文主要对几乎可换环上酉群的基本子群的正规性进行了研究。
This thesis mainly works on the normality of elementary subgroup of Unitary group over almost commutative rings.
从电厂节能和保证安全运行的需要，探讨了应用热管技术更新电厂部分换热设备的必要性和可行性。
For energy saving and secure operation of a powerplant, this paper discusses the necessity and feasibility of renewing some exchangers in powerplant applying he heat pipe technology.
分析了波纹管技术在合成氨换热领域运用的可行性，介绍了有关注意事项。
The application feasibility of bellows technology in the heat exchange of synthetic ammonia was analysed, and some notices were presented.
刚开始我本来不想换走姚明，因为他今年有稳定的进步并且更有侵略性，但是连败之后，我认为这是最好的办法去惩罚他。
I initially did not want to trade Yao due to his steady development and relatively increased aggression this year, but after this string of losses, I thought this would be the best way to punish him.
本文针对二维自然对流换热的控制方程的数值求解，利用交替方向隐式格式，改善数值方法的收敛性。
The alternative direction illegible method is used in solving two-dimensional convection-diffusion equation for natural convection in cavity, and the convergence is improved.
不要用生产性资产换闲置资产或奢侈资产。
由计算实例对其计算精度和有效性做了验证，同时指出了换热面积随冷凝过程的变化规律。
The accuracy and validity of the calculation were verified with calculation sample, and the change law of the heat transfer area varying with condensing process was pointed out.
进行了舱外航天服的被动热防护性设计，了解其空间辐射换热及空间热流。
Space radiation heat transfer and heat flux through extravehicular spacesuit must be solved for the design of the spacesuit passive thermal protection.
目的探讨风湿性心脏病心肌细胞线粒体膜磷脂损伤与换瓣术后低心排血量的关系。
Objective To explore the relationship between myocytic mitochondrial membrane phospholipid(mtMPL) injure of rheumatic heart disease and low cardiac output following cardiac valve replacement.
在搅拌反应装置中，槽内流体的换热速度和温度分布的均匀性是影响产品质量和生产效率的主要因素。
In agitated reactor, speed of heated exchange and thermal uniformity are the main factors which strongly effect on quality and efficiency.
应用现代控制理论对自动换梭织机投按侧板振动的主动控制进行了研究，为振动主动控制的可行性提供了理论依据。
We have studied the feasibility of active vibration control of shuttle loom by using modern control theory and establishing the state-variable equation of the nexible beam and picking plate system.
应用现代控制理论对自动换梭织机投按侧板振动的主动控制进行了研究，为振动主动控制的可行性提供了理论依据。
We have studied the feasibility of active vibration control of shuttle loom by using modern control theory and establishing the state-variable equation of the nexible beam and picking plate system.
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