不起作用的

It is not completely elucidated about their function and relationship in colorectal adenocarcinoma.

它们在大肠腺癌中所起的作用及相互关系尚不明确。

Other experts say Henan and other heavily populated parts of the Chinese heartland are often excluded from the financial support that goes to the coastal areas, and what antipoverty measures there are have little effect.

其他专家说，河南和其它人口密集的中部省份经常被排除在财政支持之外，这些财政支持流向了沿海地区。扶贫措施起不了什么作用。

Asymmetric information devotes to both of the two kind...

信息不对称对两个市场上的脆弱性起着根源性作用。

But none of this helps much when you're not in the center of town, which brings me back to the SIM cards on the bedspread.

但如果不是身在某个城市的中心区，这些服务都起不到太大作用，我最后还是得求助于扔在床上的那堆SIM卡。

Chon, the silent one, played an invaluable role because she carried messages hidden in her clothes without making Luisa Santiaga uneasy or offending her modesty, for she could not read or write, and would die to keep a secret.

沉默寡言的Chon亦在其中起了不可估量的作用，因为她不懂读写，且又守口如瓶，由她将邮件藏于她的衣物中携带，既不会使Luisa Santiage不自在，也无损于她的矜持。

Finally, I told her that I felt I had to withdraw her nomination, that I hated to do it, but we were going to lose, and though it was cold comfort, her withdrawal would make her a heroine in the civil rights community.

最后，我告诉她，我不得不撤回对她的提名，我也很不愿意这么做，但我们没有胜算。我还告诉她，撤回提名会使她在民权领域成为一名女英雄，尽管这样的安慰不会起什么作用。

Based on two algebra Riccati equation method especially the structure of the system Hamilton matrix and system observability theory, the role of invariant zeros in constructing system reduced order controllers was given. That is, by the suitable selection of free parameters of the system H(subscript ∞) controller, some points which were symmetry with the unstable invariant zeros about the imaginary axis became the stable poles of the system controller which were not observable and could be reduced from the system, thus could get further reduced order controller.

基于2代数黎卡提方程方法，特别是系统Hamilton矩阵的结构特点和系统可观测性理论，论述了不变零点在构造系统降阶控制器中所起的作用，即通过选择控制器的自由参量，使某些不稳定的不变零点关于虚轴对称的点构成系统控制器不可观的稳定极点，从而实现了控制器进一步降阶。

If growth of this kind does not make people happy, stagnation will hardly do the trick .

如果这样快速的经济增长都不能让人快乐，那停滞的经济更不可能起多少作用。

In recent years the role of fatty acids such as omega-3, present in oily fish including salmon and sardines, has been identified as important in producing children who are bright, dextrous and sociable.

这些年，像omega-3这种多元不饱和脂肪酸在使孩子聪明、灵活、友善的方面被认为起着重要的作用。油性鱼类中常常包含多元不饱和脂肪酸，像鲑鱼和沙丁鱼。

Evidence suggests that 1 under more stable stratification, the basic flow, if moving faster at low and high levels (particularly in the presence of jets there), allows a resulting meso-β unsteady wave to propagate eastward with respect to basic flow and even at greater velocity compared with it; 2 vertical windspeed shear of basic flow causes instabilities of the TWT perturbation; 3 considering the second derivative of basic-flow wind with respect to z (denoted by zz≠ 0 which is simply given as β* hereafter) the expression for the phase velocity of vortex Rossby wave is obtained, which is unidirectional in propagation with respect to basic flow; 4 VRoW has its physical origin from β*, i.e., from z-varying heterogeneities of y-direction averaged vorticity of the basic flow field; 5 VRoW phase velocity is associated with zonal wave number k, its energy is dispersive and the group velocity exists in the x direction; 6 when windspeed meets the condition of β*, TWT disturbance instability may be that of mixed VRoW and gravity wave; 7 if basic flow is subject to linear shear but does not meet the condition of β*, the TWT instability is that of inertia-gravity wave.

在大气层结比较稳定的情况下，如果基本气流在低层和高层较大(有可能存在低空急流和高空急流)，此时产生的β中尺度不稳定扰动相对于基流向东传播，甚至于快速向东传播。基本气流在垂直方向上的风速切变对于中尺度横波型的扰动起着不稳定的作用。如果考虑基流的二次切变，可以得到涡旋Rossby波的相速度表达式，涡旋Rossby波相对于基本气流是单向传播的。涡旋Rossby波产生的物理根源是基本流场的风速二次切变，亦即基本流场y方向的平均涡度在空间z方向上的不均匀所致。涡旋Rossby波的相速度与纬向波数也有关，它的能量是频散的，其在纬向x方向也存在群速度。在基本流场的风速存在二次切变时，横波型不稳定可能是混合的涡旋Rossby重力波的不稳定；而在基本流场的风速仅仅存在线性切变，不存在二次切变时，横波型扰动的不稳定则是重力惯性波的不稳定。

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