工作条件

Due to the increasing importance of tubular engineering advanced polymer composite coatings were needed to improve the friction and wear properties of tubular surface.

标准螺纹石油套管在连接过程中必须使用螺纹密封脂作为润滑和密封材料，在某些苛刻的环境条件下应用受到限制，为此研制了一种自润滑固体密封涂层，对其进行了有关基础研究工作。

The operation condition of a series-resonant converter is equivalently analyzed under open-loop condition. OCC condition and selection basis of resonant parameter and switching frequency are determined. The relationships between LED number, transformer turns ratio and constant current error are also determined, which provide scientific basis for the selection of LED number and transformer turns ratio.

文中通过对串联谐振变换器开环工作状态的等效分析，确定开环恒流条件和谐振参数与开关频率的选择依据，以及LED数目、变压器变比与恒流误差之间的关系，为LED数目及变压器变比的优化选择奠定了理论基础。

Work on the valve under the conditions of the above-mentioned unbalanced force, the choice of the method to change the direction of its role, is usually closed to flow into flow-based open-type, in general, the valve can easily solve the stability problem.

对阀工作在上述不平衡力条件下时，选用改变其作用方向的方法，通常是把流闭型改为流开型，一般来说都能方便地解决阀的稳定性问题。

One of the important classes is Pritchard-Salamon system with unbounded admissible input operator and output operator. Keulen[4]and Curtain[5] has finished excellent work, but they added smooth condition when they transform the solution of H∞-Control into solving two algebraic Riccati equations.

其中重要的一类是具容许无界输入和输出的Pritchard-Salamon系统，这方面已有Keulen[4]，Curtain[5]等人的工作，不过他们在将次最优H_∞-控制器存在问题转化为相应Riccati方程解的存在问题时附加了"光滑性条件"。

Under bitter hardship, they have struggled on tirelessly and uncomplainingly.

他们不知疲倦毫无怨言地在极端艰苦的条件下努力工作。

To return all or part of the remuneration paid, pay default fines or compensate for the losses for failing to conduct training according to plan or project, thus causing training result unconformable to the contractual requirements.

未按照计划和项目进行培训工作，导致培训结果达不到合同约定条件的，应当返还全部或者部分报酬，支付违约金或者赔偿损失。

The effects of synthetic conditions on the chemical composition of the moisture- curable polyurethane liquid rubber and physiochemical properties of the cured rubber, the effect of storage temperature on the pot-life of the uncured rubber, and the effect of curing time on the tensile strength of the cured rubber are investigated.

本工作研究了通过空气中的水分固化的一液型聚氨酯液体橡胶的组成、合成条件等因索对固化胶物理机械性能的影响，并讨论了温度对保存时间和固化胶放置时间对强度的影响。

Under more favourable conditions we could have finished the task .

如果条件对我们更有利，我们就会把工作完成得更好

With the rapid development of information networks, many theoreticalproblems come into focus, one of which is the reliability of the network, thatis, the ability of the network to function even when some vertices and/or edgesfail. The underlying topology of a network is often modeled as a graph.

随着信息网络的飞速发展，许多相关的理论问题开始引起人们的重视，其中之一是网络的可靠性，即网络在它的某些部件发生故障的条件下仍能工作的能力。

For technical reasons, the method requires the eigenvalues of the solutions at their fixed point is off the unit circle or lies on the unit circle with the Diophantine condition.

作者以前的工作可通过递推序列给出解析的显式解，但由于技术的原因，在方法上要求其解在不动点处的特征值不在单位圆周上或在单位圆周上但满足Diophantine条件。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。