使维持

For all these reasons, over-worked teachers are under enormous pressure to maintain discipline in class so they can do their job.

由于上述种种原因，过去教师工作要承受巨大的压力，维持课堂纪律，使他们能够做到。

Abstract］ Objective This study investigates accommodative responses to three different kinds of accommodative stimuli (Maltese cross, E visual target and Chinese characters in rapid serial visual presentation) and discusses the differences in accommodative responses when fixation targets and reading tasks were compared.

马耳他十字视标为测量调节反应的经典视标，该视标中央可提供良好的细节，使受试者维持稳定注视，还可通过改变臂长，以获得不同注视距离的相同视角。E视标亦是常用的调节视标，它能够提供较好的细节以及相对稳定的空间频率。

When establishing the planning idea,we must both face up to the rich and complicated status quo of the street block and actively make use of the potential advantages brought about by the pluralistic culture,sort out the relationship between heritage protection and city rebuilding,keep the original characteristics and vitality and maintain the sense of massiveness of the ancient town.

双龙巷－穆家桥街区是一个多元文化建筑遗迹共存的区域，在确立规划理念时，既要面对丰富而复杂的街区现状，又要积极发掘由于于多元文化带来的潜在优势，处理好遗产保护与城市更新的关系，使之保持特色与活力，维持旧城的厚重感。

It analyzes that the detailed contents of the management of city wandering mendicancy salvation are to provide them with material salvation for them to keep a basic living standard, to protect their basic human rights, and to share with them the fruits of social development.

借鉴参考国外相关制度的历史发展进程，应用有关政府职能、公平与正义、保护弱势群体等原则和理论，分析现行城市流浪乞讨人员救助管理办法的具体内容，可以发现，现行的救助制度具有对流浪乞讨人员进行物质帮助、维持基本生活、保障基本人权、使其能共享社会发展成果的功能，因而具有显著的进步意义。

Again, it is ultimately a question of political will whether efforts which may not be monetarily selfsustaining should nevertheless be pursued for higher but less tangible ideals.

这又是最后一个政治意愿的问题，没有金钱的自我维持却使工作仍应继续提高，确实不太理想。

In conclusion, the pH value of rumen fluid was within normal ranges, and the quantity of rumen bacteria is lower than that of the domestic ruminants, resulting in lower concentration of VFA in captive muntjac. Furthermore, study indicates that small Ophryoscolecidae is the major protozoa species in the rumen.

本研究结果显示，试验中圈养山羌所给饲之饲粮可使胃液酸碱值维持在正常范围，唯瘤胃中细菌数较一般畜养之反刍动物低，此导致挥发性脂肪酸之浓度亦降低，而小体型局部纤毛原虫则为主要原虫种别。

Mercury was released from the gold trap by heating the glass tube to 550 OC for 20 s with a 22 gauge nichrome wire coil (4 cm L, 38 turns) with a variable voltage controller set at 25 V.

将可变电压22号镍铬电热丝调整至25伏，加热黄金装置到550度并维持20秒使汞释放出来。

Bull; Amino acids are involved in protein synthesis and in maintaining nitrogen balance

bull；氨基酸是蛋白质合成及维持体内氮的平衡，使肌肉恢复的主要物质

Amino acids are involved in protein synthesis and in maintaining nitrogen balance in the body, thus aids muscle recovery

氨基酸是蛋白质合成及维持体内氮的平衡，使肌肉恢复的主要物质

In a very long incubation period, although no infection symptoms, appearance as an ordinary person, but the body's immune system by HIV continues to damage to the immune system can no longer maintain the minimum defense capability, a variety of normal People will not cause the disease so that patients will be pathogenic microorganisms in the conditions of the infection, caused brain, lungs, gastrointestinal tract and other parts of the disease and symptoms.

在很长的潜伏期中，感染者虽然没有自觉症状，外表一如常人，但全身免疫系统仍在继续受到艾滋病病毒的破坏，到免疫系统功能再也不能维持最低的防御能力时，多种对正常人不会引起疾病的病原微生物便会使患者发生条件性感染，引起脑、肺、胃肠道和其他部位的病变及症状。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。