性质上的

For there is no concrete mathematical expression to describe its complicate inner working process and theoretical calculation, and the movement of piston is a kind of nonlinear variable accelerated motion, we have to resort to computer technique to do theoretical research work.

油压夯管锤是高能量输出的油压马达，其工作性质是建立在流体力学、液压传动、运动学、动力学、机械学、波动力学等多学科基础上的流体机械，其内部工作过程和理论计算比较复杂，没有显示的数学表达式，而活塞的运动又是一种非线性的变加速的运动过程，因而，其理论研究必须借助电子计算机。

With the idea and the technique of the newly constructed basitheoryology ~ [1] , this article discusses two different concepts of infinite set existing in present set theory: potential infinity and actual infinity.

从新构建的基础理论学的角度，以全新的基础理论学的方法[1]，讨论同时存在于现有集合论中两种性质上截然不同的"无穷集合"概念：潜无穷式的与实无穷式的无穷集合。

So,the Hubbard model containing off-diagonal hoppings,called off-diagonal Hub-bard model,is suitable to describe manganites.

同时，由于巡游电子可以在相邻Mn离子d壳层上的两个简并的eg轨道之间任意跳跃，因此包含了非对角跳跃的Hubbard模型，即非对角Hubbard模型，是适宜描述锰氧化物性质的。

The thesis research the Romance and Hero novels just use parallel research method, the point of view on the love and altruism, from literarily construe similarities and differences between them.

基于此，本文以骑士文学和侠义小说作为研究对象，运用平行研究的方法，选取&情&和&义&两个角度，从文学现象入手分析异同，再切入到文化层面，发掘深层原因，力求能管中窥豹，揭示中西两种文化的特质，阐释侠义精神和骑士精神在文化性质、价值观念以及对国民性的影响上的差异。

There is still great uncertainty about the nature of ecological thresholds and how they are related in different spatial scales.

由于生态因子相互作用的复杂性，有关生态阈值的性质及其在不同空间尺度上的联系仍然存在很大的不确定性。

Noting the "medical/psychological" nature of problem gambling behaviors,the letter said that before being readmitted to the casino he would have to present medical/psychological information demonstrating that patronizing the casino would pose no threat to his safety or well-being.

指出*行为这种问题的医学和心理上的性质，这封信指出，在重新被赌场接纳之前，他必须提交一份医学和心理证明，确保进入赌场不会对他的安全和幸福造成任何威胁。感谢你的积极回复！金币+ 4

A self-converse Mendelsohn packing design of order v, denoted by (v, k,1)-SCMP, is defined to be a triple, where B is a collection of k-circuit of X such that every ordered pair of distinct points of X appears in at most one block of B, and / is a permutation on X such that Here, and whenB=(x0 ,x1,xk-1). The number of blocks in a (v, k, 1 )-SCMP is upperbounded by where 1 if v=l ande =0 , otherwise.

一个阶为v，区组大小为k的自反Mendelsohn填充设计，记为—SCMP，定义为一个有序三元组，其中X为v元点集，B为X的一族循环有序k元组，f为X上的一个置换，它满足如下性质：(1)对任意x，y∈X，x≠y，有序对至多包含在一个区组中；这里区组当且仅当和一个—SCMP所含的区组个数不超过，其中当V(v-1)≡1时，ε=1；否则ε=0。

Three new aldehydes and twelve new porphyrins have been synthesized and characterized by various spectroscopic techniques.

在参考文献的基础上，合成了三种新的醛以及12种变化非常有规律的新型卟啉并对其进行了相应表征描述，总结了其结构和性质差异的关系。

These two accounts are the transition accounts of the costings property, categorizing to gather together the business enterprise investment in the manpower property in order to, the actual quantity of the debit reflection investment expenditure, credit the reflection turns into the amount of money of the manpower property account.

这两个账户是成本计算性质的过渡账户，用以分类汇集企业在人力资产上的投资，借方反映投资支出的实际数额，贷方反映转入人力资产账户的金额。

While conventional ab initio methods is too time-consuming to afford, because the accura...

因而有必要发展一种准确的、计算上易于实现的方法来探讨体系的结构和性质间的内在关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。