无法研究的

Studies on the takeoff behaviour of rice water weevil ( Lissorhoptrus oryzophilus Kuschel) indicated that the weevils took more than 1h to display their limbering up exercise at the tip of grass leaves before takeoff, so that their exodus rate were affected strongly by wind and they could only take off at calm or breezing weather.

对浙江省双季稻区稻水象甲起飞行为的研究表明，风是影响其迁飞扩散的重要因子。稻水象甲起飞前需要较长时间（1～2h）的展翅准备，因而风力稍大便无法起飞。

Many studies suggest that the pessimist's feeling of helplessness undermines the body's natural defenses, the immune system. Research has found that the pessimist doesn't take good care of himself. Feeling passive and unable to dodge life's blows, he expects ill health and other misfortunes, no matter what he does. He munches on junk food, avvoids exercis, ignores the doctor, has another drink.

许多研究表明，悲观者的无助感会破坏其身体的自然防御体系，即免疫体系；他们无法照顾好自己；消极被动，禁不住生活的风雨，不论做什么，他都会担心身体不好或者会有其他不幸；他还会吞吃垃圾食品，拒绝锻炼，不听信于医生，一再放纵酗酒。

"The whipsawing of assets is a nightmare for fund managers, because they cannot invest as much as they would otherwise do," said Peter Alexander, head of Z-Ben Advisors, a Shanghai-based research firm.

总部位于上海的专业研究公司Z-Ben Advisors的负责人彼得·亚历山大表示：&对于基金管理公司而言，资产'拉锯战'就像一场噩梦，因为这使得它们无法进行期望规模的投资。&

The polymerization of preparing PDA could be impacted by allyl chloride, allyl alcohol and allyl aldehyde. The content of allyl chloride, allyl alcohol and allyl aldehyde in the DMDAAC monomer solution varied from 0mg/kg to 1000mg/kg, their intrinsic viscosity of PDA descended from 10.3dL/g to 8.0dL/g, 6.8dL/g and 8.8dL/g respectively. The polymerization of preparing PDA could be carried out well in the case the content of NaCl, active carbon, yellow residua and low molecular polymer of DMDAAC were less than 10000mg/kg, 1000mg/kg, 1000mg/kg and 50000mg/kg respectively.

单一杂质含量变化对聚合产物PDA特征粘度影响的研究结果表明：在DMDAAC单体溶液聚合反应过程中，当Fe~(3+)、Fe~(2+)和Cu~(2+)含量分别达到7mg／kg、9mg／kg和5mg／kg时无法得到聚合产物PDA胶体；当烯丙基氯、烯丙醇、烯丙醛含量分别从0mg／kg增加到1000mg／kg时，聚合产物PDA的特征粘度从10.3dL／g分别下降到8.0dL／g，6.8dL／g和8.8dL／g；活性炭和黄色物质含量在1000mg／kg以下，低聚物含量在50000mg／kg以下以及氯化钠含量在10000mg／kg以下时产物PDA的特征粘度降低变化量不超过0.2dL／g。

At present, my country has greatly achieved progress in CAD of blanking die, but because of these system"s limitation, they can"t satisfy the request for die producers and cant be used widely , either.

目前，我国在冲裁模CAD的研究中取得了很大进展，相继推出了一些冲裁模CAD系统，但由于这些系统的局限性，尚不能满足模具生产厂家的要求，无法得到广泛应用。

The scheme design and recovery evaluation of low calorific value coal from gangue ;2. Research of switched reluctance motor control system for coal gangue hoist;3. To avoid wasting of coal resource,mitigate mixing of gangue into coal and raise benefit of mine,it is decided to carry out feasibility study of dry dressing of gangue -containing coal.

霍林河1#露天矿煤层赋存条件复杂，采用大型设备有绝大部分薄煤层无法分采，而造成煤炭损失，为了降低煤炭资源的浪费、减少矸石混入、提高煤矿的经济效益，决定对杂煤进行干式分选的可行性分析研究。

There were six themes in this study. First of all, the geometry of in-vivo human pinna and ear canal was measured non-invasively. The 3D model of pinna and ear canal was reconstructed and then measured based on the image processed by HRCT. Second, the 2D curvature of in-vivo human ear canal was measured non-invasively. The angles and curvatures of superior and inferior walls of first and second bends were measured. The 2D curvature of ear canal was computed by sine and cosine laws. Third, the in-vivo human ear canal was reconstructed by RE. The distribution of sound field was analyzed by FEM. The data obtained in this study can be the reference for clinicians and audiologists. Fourth, the 3D model of earmold of hearing aids, including the ear shell and the housing, was reconstructed by RE based on the image of in-vivo human ear canal obtained by CT.

本研究主题其四，对於听力受损之患者往往皆须选配助听器帮助其放大声音，其中耳模是助听器的外壳，也是接触到耳朵的仪器，而耳道型助听器系位於耳甲艇及耳甲腔延伸至耳道第一弯道处，在制作耳模必须利用灌模方式来取得紧配之耳模，其中耳模在助听器的使用过程中，常因耳模松脱，无法与人耳道紧密配合而造成漏音，因此，利用活体人外耳道电脑断层影像，重建耳道型助听器耳模之三维立体模型影像，其中耳模包括了耳壳及耳模内部空间，并进行几何外型量测，探讨耳道型助听器之体容积大小，也提供了制作耳模时快速、精确度高、减少翻模及修模次数，可减少误差率之方法。

Excessive specialization will make scholars lack overall knowledge and communions between them.

过分的专业化，使得学者缺乏全局性知识，使得学者之间的联系和交流减少，无法理解和学习他人的研究，同时会使听众和支持者减少，这会在一定程度上阻碍学术进步。

However, due to the inherent feathers of VHF, this type of radar is too subject to jammers to work well.

然而，由于米波固有的特点，米波雷达极易受到干扰而无法正常工作，因此提高米波雷达抗干扰的性能就成为SIAR研究中的一个重点内容。

Dr. Sawyers said that his team had tried to initiate a feasibility study along these lines but could not recruit sufficient numbers of patients and were met with a lack of enthusiasm among clinical colleagues.

Sawyers医师表示，其团队已经着手进行一项试验，但苦于无法收纳到足够数目的病患，且临床执业的同事对这样的研究缺乏兴趣。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。