不起作用的

TEM field is slowly changing in middle to deep depth prospecting, which is characterized by unperceivable wave and dominant dissemination, thus it can be assumed to be quasi-static state approximate and the wave equation of electromagnetic wave radiation is retrogressive and replaced by diffusion equation.

在中、深层勘探情况下，TEM场是缓变的，其波动性已经很不明显，扩散特征起支配作用，波动方程退化成了扩散方程。

The boss criticized him at the meeting, but it was just like water off a duck's back.

他的老板在会议上批评了他，但是根本起不了一点作用。

The Second Affiliated Hospital, Medical School of Xian Jiaotong University, Xian 710004, ChinaABSTRACT: Objective To observe the acute homodynamic changes of biventricular pacing in patients with sick sinus syndrome and investigate the Ca2+ changes during absolute refractory period electrical stimulation by applying computer simulation.

目的 观察双心室起搏对病态窦房结综合征(sick sinus syndrome， SSS)患者的急性血液动力学变化及心脏绝对不应期电刺激对心功能的影响，通过计算机仿真研究，探讨绝对不应期电刺激的离子流作用机制。

Thus, while it appears that the state of generalanesthesia is neither necessary nor sufficient for developmentof postanesthetic memory impairment, the choice of anestheticsmay play a role in late cognitive outcome in the aged.

因此，当全身麻醉状态对发展成麻醉后记忆受损既不是必然，也不足于形成，麻醉药的选择可能在老年后期认知功能结局中起一定作用。

The mantle shear zone played an important role in continental blackup. Especially, the dissymmetry caused by simple shear deformation resulted in the different amount of extension in upcrust and subcrust, which in turn formed the detachment of the upper mantle from the crust, that is, the thinning positions of upper mantle and crust were different.

地幔剪切带在大陆裂解过程中起关键性作用，特别是简单剪切变形所产生的强烈不对称构造，以至壳上伸展量明显不同于壳下伸展量，壳幔明显折离，使得壳幔变薄区的位置明显分离，这将能很好地解释华北地台东部岩石圈地幔演化及其浅部盆地形成等的响应。

LN with renal failure has non-seletive proteinuria and ketoacid therapy can decrease the quantity of protein in the uria of LN and NLN.

LN肾功能不全时蛋白尿为非选择性的，酮酸疗法对减少LN及非狼疮性CRF蛋白尿起一定作用。

I abused substances too much and it wasn't the answer to my problems.

我滥用药物太严重了，但是这对我的问题起不到任何作用。

The important role people played in history can never berated too much.

人民在历史上所起的作用，无论怎样评价都不会过高。

The proposed boycotts to Carrefour in China may not be effective. The following actions may be much more influential

目前有人建议的抵制家乐福可能起不了什么作用，以下措施可能影响更大。

It would take up a larger Volume than this whole Work is intended to be, to set down all the Contrivances I hatch'd, or rather brooded upon in my Thought, for the destroying these Creatures, or at least frighting them, so as to prevent their coming hither any more; but all was abortive, nothing could be possible to take effect, unless I was to be there to do it my self; and what could one Man do among them, when perhaps there might be twenty or thirty of them together, with their Darts, or their Bows and Arrows, with which they could shoot as true to a Mark, I could with my Gun?

我脑子里想到各种各样的计划，想消灭这些野蛮的家伙，或者至少吓他们一下，让他们再也不敢上岛来。如果真的想把我酝酿过的计划通通记载下来的话，那就会比这本书还要厚了。然而，这一切都是不切实际的空想；只想不做，起不了任何作用。更何况如果他们二三十人成群结伙而来，我孤身一人怎么能对付他们呢？他们带着标枪或弓箭之类的武器，射起来能像我的枪打得一样准。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐