达不到

This commandment, that I command thee this day is not above thee, nor far off from thee

其实，我今天吩咐你的这诫命，为你并不太难，也不是达不到的。

In this dissertation, we optimized the thinkness of each layer of TFEL devices using the layered optimization method to obtain ZnS: Ce〓 TFEL devices. Accoding to the energy level structure of Ce〓, two criteria for distinguishing the EL of Ce〓 were found out, from which it was conduded that the TFEL of ZnS: Ce〓 comes from 5d→4f transition of Ce〓. The measurement of brightness waveform showed that the TFEL of ZnS: Ce〓 was the luminescence from independent centers. and there were the field induced-delocalization in this process anf it〓s the cause of low TFEL efficiency of ZnS: Ce〓. In this dissertation, different influence factors on TFEL of ZnS: Ce〓 were sdudied. The influence of different host lattice is different: The blue/green ratio of ZnS: Ce〓 in hexagonal system of ZnS is larger than that in cubic system of ZnS, and the TFEL peaks in hexagonal system of ZnS moves toward longer wavelength compared with that in cubic system of ZnS. The adding buffer layer was used in this stage. The solubility of Ce〓 in ZnS was small and it was another limit to TFEL brightness of ZnS: Ce〓 device. The solubility of Ce〓 increased ten times when using Li ions as flux, so that the TFEL brightness of ZnS: Ce〓 was enhanced. It was found that the appearing of ZnO in active layer improves the TFEL of ZnS: Ce〓: the brightness and the wave range of ZnS: Ce〓TFEL were enhanced.

本文采用TFEL的分层优化方案，优化组合了各膜层厚度，选择最佳制备条件，得到了ZnS：Ce〓的TFEL；根据Ce〓的能级结构，找到了判别Ce〓的EL的两个简单依据，并据此断定ZnS：Ce〓的TFEL的两个发射峰分别属于Ce〓的〓和〓跃迁；亮度波形测量表明ZnS：Ce〓的TFEL属于分立中心发光，分析认为在此过程中存在着较严重的场致离化，这也是ZnS：Ce〓的TFEL效率较低的一个原因；本文考查了影响ZnS：Ce〓的TFEL的各种因素，发现：基质的晶体结构对ZnS：Ce〓的TFEL有所影响，在六角相ZnS中Ce〓的TFEL优于立方相ZnS中Ce〓的TFEL：发射峰的蓝-绿比相对较大，且光谱向短波方向移动，在此项研究中本文采用了在发光层前增镀过渡层的办法，过渡层为六角晶相的ZnO；限制ZnS：Ce〓的TFEL器件亮度的一个原因是Ce〓在ZnS中的溶解度低，本文用Li离子作助溶剂增大了Ce〓的溶解度，增大幅度为一个量级，并且ZnS：Ce〓的TFEL亮度明显提高；从ZnS：Ce〓的TFEL光谱来看ZnS：Ce〓的TFEL波长覆盖范围较小，亮度也不高，达不到做为白色TFEL材料的要求，需要寻找新的白色TFEL材料；在研究ZnS：Ce〓的TFEL中还发现：发光层中ZnO的出现有利于ZnS：Ce〓的TFEL：发射峰变宽、亮度增大。

In order to fulfill a favourable interation between the markets and the government, the deepened developments of the reformation of economic system entails a government system of great efficiency ,fairness ,incorrigibility and openness.

虽然行政管理者在行政执行过程中极力追求决策实施的信度和效度，实现政府效益最大化，但实际上在行政执行中存在不少问题，致使决策目标往往不能如期完成。甚至达不到。

The Russian peasant is a small land-hungry proprietor, as far from communism in his thoughts and methods as a whale is from flying

俄国农民渴望自己成为土地的拥有者，其思想方式远远达不到共产主义，就像鲸鱼绝对飞不起来一样

A result is not sent if its disk or memory requirements are not met by the host.

如果主机的磁盘或内存达不到要求，计算结果不会发送。

BACKGROUND: The copper-superoxide dismutase can not play an effective role in free radical-scavenging in the process of hypoxia or reaeration because of blood-brain barrier, whether the treating effect can be enhanced by chitosan nanoparticles is uncertain.

背景：由于血脑屏障的存在，铜超氧化物歧化酶在临床应用中往往达不到其在体外对中枢神经细胞缺氧、复氧过程中的自由基清除效果。那么能不能利用壳聚糖纳米粒这一种新的基因载体来增强铜超氧化物歧化酶的治疗效果呢？

Those who have been called the Residuum of our large towns have little opportunity for friendship; they know nothing of the decencies and the quiet, and very little even of the unity of family life; and religion often fails to reach them.

那些被称为我们大城市中的*民的人，很少有寻求友谊的机会；他们不知道什么叫文雅和宁静，甚至对家庭生活的和谐也很少理解；而且宗教力量也常常达不到他们那里。

We do not separately skeletonize the renal ein and artery during LPN. We think that indiidual essel skeletonization is unnecessary, and might een be counter-productie for the following reasons:1it is not mandatory for achieing adequate clamping;2 it might result in renal artery asospasm;3 it increases the risks of iatrogenic ascular injury with serious sequelae;4 some hilar fat might cushion the renal essels, minimizing crush injury to the endothelium by the clamp, especially in cases of atherosclerotic renal arteries;5 it requires ≈ 30 min of precious operating time, detracting the surgeon from the primary goal of the procedure.

在LPN过程中不分离肾动静脉轮廓，因其并无必要，如分离可能由于以下原因达不到预期目的：1 不必充分夹紧；2可能导致肾动脉痉挛；3增加医源性血管损伤及其严重后遗症的风险；4肾门脂肪可能对于肾脏血管起到缓冲作用，减少钳夹对于上皮组织的挤压伤，特别是对于动脉粥样硬化的肾脏动脉病例；5 导致达到手术目的的时间中花费大约30分钟宝贵手术时间。

Unless the pot is very hot, the temperature of the water will drop too low during steeping for the best extraction .

如果茶壶不很热，那么在泡的过程中，水温会降得太低，达不到理想的泡出。

Microstructural analysis indicated that granular carbides existed in the steel of lower fatigue life prior to quenching heating, which remained undissolved during austenizing and remained in the quenching microstructure,resulting in lower fatigue life.

但调查发现，这些工作多数局限在弹簧钢常规力学性能方面，对抗疲劳性能的研究相对较少，而弹簧生产中则经常出现疲劳寿命达不到要求、影响因素却不清楚的问题。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。