查询词典 be weak in

In addition, considering the possible weak instruments problem in the first difference GMM estimator developed by Arellano and Bond (1991), the system GMM developed by Blundell and Bond (1998) should be a more suitable way to observe the relation between initial income level and economic growth convergence.

此外，考虑采用Arellano and Bond(1991)的the first difference GMM估计式可能存在弱工具性问题，以Blundell and Bond(1998)发展出的the system GMM估计式，作为探讨初始所得与经济成长收敛的关系应是较为适合的方法。

There was no response forthcoming to the suggestion however, such as it was, Stephen's mind's eye being too busily engaged in repicturing his family hearth the last time he saw it with his sister Dilly sitting by the ingle, her hair hanging down, waiting for some weak Trinidad shell cocoa that was in the sootcoated kettle to be done so that she and he could drink it with the oatmealwater for milk after the Friday herrings they had eaten at two a penny with an egg apiece for Maggy, Boody and Katey, the cat meanwhile under the mangle devouring a mess of eggshells and charred fish heads and bones on a square of brown paper, in accordance with the third precept of the church to fast and abstain on the days commanded, it being quarter tense or if not, ember days or something like that.

33然而，他这建议并没有得到回应。这是由于斯蒂芬正忙于在心目中重温他最后一次与家人团聚的景象。披长发的迪丽坐在炉边等候着巴满煤烟的壶里那稀薄的特立尼达可可豆煮沸，好和代替牛奶的燕麦水一道喝。那是星期五，他们刚吃完一便士两条的鲱鱼，另外让玛吉、布律和凯蒂每人都各吃了一个鸡蛋。那天正赶上四季大斋或是什么日子，根据教会在指定的日子守斋并节制的第三戒律，猫儿也正在轧液机底下吞食着一方块褐色纸上的那簇蛋壳和鱼头鱼骨。

The incidence of gallstones in psychiatric patients is much higher than that in normal people, may be related to less movement, weight gain, metabolism disorder of glucose and lipid and weak contractility of cholecyst after the administration of antipsychotics.

精神病人胆石发生率明显高于正常人群，其原因可能与服用抗精神病药物后病人活动减少，体重增加，糖、脂质代谢异常以及胆囊收缩功能下降等因素有关。

How had caught the adjustment of structures of next level agriculture industry, the author puts forward, what serious problem does not depend on the market-in concept of the farmer is strong weak, whether to also want specific and directive farmer to plant in basic level government what does move, and the development that depends on wanting to be captured cogently and catch good business to organize.

如何抓好下阶段农业产业结构的调整，作者提出，重要的问题不在于农民的市场观念的强弱，也不在基层政府是否要具体指导农民种什么调什么，而在于要切实地抓住和抓好商业组织的发育。

At the same time, the SEM study shows that gibbsite occurs on the sample surface. At 200 ℃, as dawsonite sandstone is being dissolved authigenic siderite forms. At 300℃, chlorite deposit on parts of the sample surface. The weak solution of dawsonite sandstone at 100℃ and the formation of siderite at 200℃ illuminate that CO2 being in carbonates in the strata can not be released when CO2 phase is adding to the system.

同时，各温度下样品表面均有一水软铝石放射状集合体沉淀。200℃时，随着片钠铝石的溶解有自生菱铁矿生成，300℃时样品局部有绿泥石沉淀。100℃下片钠铝石的微弱溶解及200℃下菱铁矿的形成表明，在地层条件下以碳酸盐矿物形式捕获的CO2，不会由于CO2的二次注入而重新释放。

It is known theoretically that to the variational problem with weak constraints in cost functional J, its Euler equation can be discreted into difference format, by using matrix theory and difference method of partial differential equation we know that there exists optimal selection of weight factors in the cost functional under the condition of minimal variance between analysis field and ideal field.

从理论上可知，对于目标泛函J带有约束条件的变分问题，将其Euler方程离散成差分形式，利用矩阵理论和偏微分方程的差分方法，则目标泛函的权重因子，在分析场和理想场的最小方差意义下存在最优选取。

We observed that a majority of dsRNA was localized in the nuclear periphery discontinuously after 24 hours of transfection. Time course showed that the labeled dsRNAs were maintained in cultured silkworm cells for up to 5 days. After six days, the signal was too weak to be detected.

用荧光显微镜观察FAM标记的dsRNA在细胞内的定位，发现在转染24小时后，dsRNA开始越来越多的聚集在细胞核的周围，并呈不连续分布，细胞内的荧光强度也越来越强。dsRNA在家蚕细胞中可以维持5天的时间，但到第6天时细胞内已检测不出荧光信号。

The exchange of the electrovalence of the cupric ion has been testified by XPS-ESCA.Graphite and chloride in the stage structure,seem to be the conductor and insulator,which form the "sandwich" structure.This special structure produced a weak chemical bond belt and provided the carrier space in the perpendicular direction to the c-axis.These factors in and vertical to the direction of c-axis together increased the electrical properties.

GICs将良导体的石墨层与绝缘体的氯化物层在分子尺度上结合起来，所形成的阶结构相当于许多导体和绝缘体层组成的"三明治"结构，产生化学键薄弱的通道，提供了垂直c轴方向的载流子通道，隧道效应和格架空间提供了载流子活动空间，这些因素共同作用使得GICs的电导率成倍增加

In this age, the weak points of traditional education and examinationism have become more and more obvious. As a result, learning how to learn and becoming a creative person are the purpose of current education and the aim of education reforms. To achieve these goals, an interactive relationship between teachers and students in classroom must be constructed.

在这一时代，传统教育和应试教育的弊端也尤显突出，培养学会学习、学会创造的人才也成为当前教育的最重要目标和教育改革的方向，要实现这一目标，则必须在课堂教学中构建真正互动的师生关系。

However, because of the natural characteristics of the micro and small hole EDM, such as weak discharge energy, high pulse power supply frequency, unstable spark discharge states and small discharge gap, etc., there are still some key technical difficulties in its machining process need to be solved: the difficulties in real-time discharge states detection, in accurate control of machining process, in prediction of discharge states, in improvement of machining system precision and in on-line preparation of micro electrode, etc.

但是由于微细及小孔电火花加工自身具有的放电能量极微、脉冲电源频率高、难以获得稳定的火花放电状态以及放电间隙极小等固有特性，决定了其加工过程仍然存在放电状态实时检测方法单一、加工过程难于准确控制、放电状态难于预测、加工系统精度提高困难和微小电极在线制备困难等关键性技术难点，亟待突破和解决。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失