使有效

In the research of prescription, through the experiments we knew the influence from the Nb_2O_5 or Y_2O_3 single donor doped on high-temperature PTC ceramic, and got the curve graph drawing the resistivity and mixing quantity. In order to restrain lead volatilize and mix the rang of donors to neutralization the harmful acceptor impurity in raw materials, adopt the prescription design of Nb_2O_5 and Y_2O_3 double donors-doped. From the result, we know that regulation proportion of Nb , Y double donors, can make high-temperature PTC ceramics semiconducting, the pottery demonstrates good electric performance.

为了能够更有效的抑制铅挥发，并且使掺杂范围能够更好的调节，以"中和"原材料中的有害受主杂质，在配方设计中采用了Nb_2O_5和Y_2O_3双施主掺杂的配方，由结果可知，适当的调节Nb、Y双施主掺杂总量及Nb、Y掺杂比例，可以使高温PTC陶瓷充分的半导化，陶瓷表现出良好的电性能。

On the basis of accurately calculating the parameters of formation water,the effects of these parameters on the effective porosities of rocks and the parameters of identifying gas reservoirs are emphatically analyzed.It is pointed out that in the strata containing salt-water,if the parameter values of pure water are used,the calculated effective porosities of the rocks and the calculated parameter values of identifying gas reservoir will be all reduced,which exerts a serious influence on the log recognition of gas reservoirs.

在准确计算地层水参数的基础上，着重分析这些参数对地层岩石有效孔隙度和气藏判识参数的影响，指出在含盐水的地层中，如果采用淡水参数值，其结果是使计算的岩石有效孔隙度和气藏识别参数值降低，严重地影响了气藏的测井识别。

However, the income gap results in demerit circular of the agricultural and rural economy, which dissatisfied rural citizen's basic demands, and delays and reists the development of rural market as a whole.

但城乡差距扩大也导致了工农业和城乡经济陷入了不良循环的境地，使农村居民的有效需求无法满足，农村市场难以有效启动，从而制约了农村经济的进一步发展。

The experiment result showed that this method can effectively eliminate image dithering and distortion caused by air disturbing,and the precision of measurement and measurement scale can be improved.

实验证明：该方法能有效的解决由于大气扰动而产生的图像抖动、变形等问题，从而使测量精度提高，有效测量距离增大。

Since floor device adopts activities, the principle of release compound needle effectively sealed off the yarn and hang sloughing function, and yarn clip and bottom shear device yarn device is complementary to each other, both with work, can fully play their due role, effectively reduce the waste of yarn, improve the production efficiency.

起底板装置采用活动释放原理，使封闭的复合针有效实现其挂纱及脱纱功能，而纱夹纱剪装置与起底板装置是相辅相成的，两者相互配合工作，才能完全发挥其应有的作用，有效地减少了纱线的浪费，提高了生产效率。

The comb device adopt activity releasing theorem, which achieves the compose needle to pick up yarn or release yarn. The comb with clip and cutter is complement to each other, both to cooperate with each other. Which give full pay completely due action and reduce the waste yarn and increase the production efficiency.

起底板装置采用活动释放原理，使封闭的复合针有效实现其挂纱及脱纱功能，而纱夹纱剪装置与起底板装置是相辅相成的，两者相互配合工作，才能完全发挥其应有的作用，有效减少了纱线的浪费，提高生产效率。

Its working principle is introduced here: when a gas or powder starts a flame or explosion, the ultraviolet sensor will acquire the signal and sent it to the controller to produce the trigger voltage, and then the explosive suppressor will release a great number of gas promptly spraying dry powder extinguishing agents, which thereby form extinguishing agent smoke and effectively extinguish explosion flame. It is rapid and of strong antiinterference ability, high reliability and can be fixed easily. It is capable of effectively suppressing natural gas explosion in the simulative gas explosion test. It can be applied in CNG stations or other site where has explosive and combustible gas whereby to enhance the overall accident control ability.

当发生气体燃烧、爆炸时，紫外传感器接收火焰信号，传送至控制器，控制器产生触发电压，使抑爆器的产气剂释放出大量气体，驱动快速喷撒出干粉灭火剂，形成足够浓度的灭火剂粉雾体，有效扑灭爆炸火焰，具有动作速度快、抗干扰能力强、可靠性高、安装使用方便等优点，在天然气模拟爆炸试验中能有效抑制天然气爆炸，可用于CNG加气站或其他燃烧爆炸性气体场所，提高其整体防灾抗灾能力。

Inwheat intercropped with soybean not only N situation could be improved butalso P situation could be.2In intercropping,the pH of soybean rhizospherewas decreased by increasing the R-Apase activity,which could decelerate thetransforming and fixing P fertilizer.3In both monoculture and intercroppingsystem,the soil pH of rhizosphere was affected by cropping system at two Plevel which only 0.1-4mm distance from the root surface,but the effect of S-Apase activity in the rhizospher soil by cropping system was less than3mm.In effect,the rhizosphere P was really available nutrient,and applyingP to rhizosphere was effective ways to reduce the P nutrient competition.4Inwheat/soybean intercropping,the peak stage of reduction ability of roots wasthe same as that of the root growth,so that the time compensation appearedin intensity of nutrient absorption.

间套作大豆、小麦、玉米根系Apase的差异又反映出大豆利用土壤磷的潜在能力最大，而玉米最小，可见禾谷类的小麦与大豆间套后不但能改善小麦的氮素营养状况还使磷素营养也得以好转。2）间套大豆根际pH值的下降，导致磷肥施入土壤后形成〓-P的比例显著提高，转化成〓-P等难溶性磷减少，说明间套的大豆能减缓肥料磷在土壤中的转化和固定，减少磷素向无效化方向转化。3）复合群体根际土壤pH值的影响一般只发生在0.1-4mm的根际微区，而土壤磷酸酶的影响供磷与否在距根表3mm以外都无多大差异，说明根际磷才是真正有效磷，根际施磷是解决磷素竞争的有效途径。4）。

Vandierendonck,A.,'The contribution of working memory resources in the verification of simple mental srithmetic sums',Psychological Research,1999,62,72-77.% q! Y! l*~# y: ^ [5] Miyake,A.,Friedman,N.P.,Emerson,M.J.,Witaki,A.H.

由于这两种任务只对中央执行系统产生干扰，对其他两个子系统不产生影响，因而能有效地分离工作记忆各子系统的功能，使研究更有效。

International Phonetic Alphabet to master pronunciation of English not good, hard American accent or English accent. 3 unfamiliar grammar structures, do not know how the combination of the laws of English sentences. 4 a lack of listening skills and do not know how to listen to only the most effective. 5 the lack of positive and effective English thinking, do not understand the use of Chinese thinking on the English-speaking听说读写译especially great to hear a negative transfer effect. 6 psychological barriers exist, do not know the owner of that happy state of good full confidence and strong desire to make listening better listening comprehension.

对英语国际音标发音掌握不好，分不清美国口音还是英国口音。3语法结构不熟，不懂得英语句子的组合规律。4听力技巧缺乏，不懂的如何听才最有效。5缺乏积极有效的英语思维，不懂的运用汉语思维会对英语的听说读写译特别是听的产生很大的负迁移的效应。6存在心理障碍，不懂的拥有愉快的心情，良好的状态充分的自信和强烈的听音欲望会使听力理解的效果更好。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。