查询词典 negative character

Similarly the negative cable should connect the amplifier negative terminal to the negative terminal on the loudspeaker.

同样负线应该从功放的负终端连接到在音箱上负终端。

Similarly the negative cables in each pair should connect the amplifier negative terminal to the negative terminals on the loudspeaker.

同样在每一对中负缆绳应该把功放的接入负终端连接到在扬声器上负端。

The apparatus includes a positive contact (50) positioned so as to engage the positive terminal (42) of the battery, a negative contact (52) positioned so as to engage the negative terminal (44) of the battery, a third contact (54) positioned so as to engage the third terminal (46) and a logic circuit (72) connected to the positive, negative and third terminals.

所述装置包括：一个设置用于与电池的正端（42）连接的正触点（50）；一个设置用于与电池的负端（44）连接的负触点（52）；一个设置用于与电池的第三端（46）连接的第三触点（54）；和一个与正触点、负触点和第三触点连接的逻辑电路（72）。

In order to investigate the tempo-spatial characteristics of negative air ions distribution in Guangzhou from September to November of 2008, we choosed typical plot to make scientific researches, which including the monthly variation of air negative ions, the influences of types of functional zones, sampling timeinterval and typical habitat on air negative charge ion concentration.

为研究广州市下半年空气负离子分布的时空特征，利用空气离子测量仪，在广州市选择典型的采集地，分析了广州下半年空气负离子的月际变化以及功能区类型、取样时段、典型环境对空气负离子浓度的影响。

Culture tender leaves in culture medium of MS+2,4-D1.5mg/L+30g/L suger+0.7% agar pH5.8 for 20 days in darkness at 25℃, and then subculture to induced Ⅱ-type calli. Use forceps cutting the tissue to nubble with 2mm2, and put the tissue into Agrodacterium tumefaciens LBA4404 liquid supplemented with AS 100mg/L,then, co-culture 3 days, resume 7 days in MS+2,4-D1.5mg/L+30g/L suger+500mg/L cef, take to MS+2,4-D1.5mg/L+30g/L suger+100mg/L cef+10.0mg/L kanamycin culture 20 days in darkness. After that to make it polarize in MS+30g/L suger+100mg/L cef+10.0mg/L km. The percentage of km resistant callus was reached max after infection for 45 min, the average is 29.66%. Simultaneity, tender leave callus are infected 5 min by A. tumefaciens liquid in different negative pressure, and kept on 15 min in Agrodacterium tumefaciens liquid without negative pressure. Then screen out resistant callus and obtain transgenic plants. When the negative pressure is -0.05MP the percentage of km resistant callus was reached max, the average rate is 37.5%.

将心叶接种于MS+2.4-D1.5mg/L+30g/L 蔗糖，琼脂0.7%，pH5.8 培养基中25℃暗培养20d 后继代一次，诱导产生Ⅱ型胚性愈伤组织，用镊子将其夹碎成2mm2大小的小块，置入添加100mg/L AS 的根癌农杆菌LBA4404 菌液中，侵染时间为45min，共培养3 天后，转入MS+2.4-D1.5mg/L+30g/L 蔗糖+500mg/L Cef 培养基中恢复7天，再转入MS+2.4-D1.5mg/L+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 中，遮光培养20d后，置入其MS+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 分化，卡那霉素抗性愈伤组织获得率在侵染45min 时达到最大值平均为29.66%；同时以甘蔗心叶愈伤组织材料，通过循环水式真空泵，产生负压，设定不同的负压值，在农杆菌菌液中感染5min 后，在负压条件下继续侵染15min 后，筛选出抗性愈伤组织并获得转化植株，其中在负压为-0.05 时转化率达到最大值，其卡那霉素抗性愈伤组织获得率平均为37.5%。

Species-pairs were positive correlation,including 10 species-pairs were higher significant positive correlation and 24 speciespairs were significant positive correlation, and 263 species-pairs were negative correlation, including 8 species-pairs were higher significant negative correlation and 28 species-pairs were significant negative correlation, which were tested by Spearman＇ s rank correlation coefficient.

正负相关比为0.7643，显著种对占总对数的15.05%，群落优势种种间多呈不显著关联。2）按照31个建群种和优势种对环境的适应方式和主导生态因素，它们被划分为2个生态种组：芦苇组和早熟禾组。3）关帝山撂荒地植物群落以退耕还林的先锋物种为主，表明植物群落处于森林植被恢复的初期演替阶段。

For example, all previous theoretical predictions and experimental observations have been questioned by Valanju et,wherein the authors claim that the presence of dispersion prevents power transmitted at RHM-LHM interface from refracting at a negative angle, which means the refraction of group velocity n_g carrying the physics information isall along positive refraction, but "negative refractive material " means only the refraction of phase velocity np is negative.

涉及最多的是负折射现象在物理上的因果率，例如Valanju等人通过一些理论计算认为所谓的"负折射率材料"只是相速的折射率n_p可以是负的，而携带物理信号的群速度的折射率n_g永远是正的，由此引发了许多争议。

Morphological and physiological identification showed that NTG-01 was Gram-negative, short rod shape, with flagella around the bacteria, V-P test positive and Methyl red test negative. The bacterium can use glucose as carbon suource and produce gases. No H2S produced on TTS medium. Lysine decarboxylase and orthinine decarboxylase, catalase and gelatine test are positive. Arginine decarboxylase, dehydrolase, oxidase and urase test are negative. Sequencing and alignment of 16S rDNA showed that it shared a 99% homologous sequence with Enterobacter aerogenes.

结果显示菌株NTG-01为细菌，革兰氏染色阴性，短杆状，鞭毛周生，V-P试验阳性，甲基红实验阴性，利用葡萄糖产酸产气，不能在TIS培养基上产生H_2S，赖氨酸和鸟氨酸脱羧酶试验呈阳性，精氨酸脱羧酶和双水解酶试验呈阴性，氧化酶和脲酶试验阴性，接触酶和明胶液化试验阳性，但后者反应迟缓，一周后才观测到结果。

"Look in us the cornerstone that discovery is network public relations, accomplish entire network to monitor through technical measure, can monitor the sound that is aimed at a certain enterprise and brand to Internet in real time everyday, can what is the stress that monitors netizen attention for a short while, what does negative topic have, it is who is give out negative voice, undertake track and be judginged to its next, seeing negative voice is to come from common public or competitor, make corresponding countermeasure next, undertake handling to its."

"在我们看来发现是网络公关的基石，通过技术手段做到全网监测，每天都可以实时地监测到互联网上针对某个企业和品牌的声音，可以第一时间监测到网民关注的重点是什么，负面的话题有哪些，是谁在发出负面的声音，然后对其进行追踪和判断，看看负面的声音是来自普通公众还是竞争对手，然后制定相应的对策，对其进行处理。"

Negative Ce anomaly is one of diagnostic criteria of geotectonic setting of silicalite. Silicalite in Golug, Xinrenlang and Lhazê in the Gangdisê tectonic belt is characterized by unclear negative Ce anomaly characteristic of epicontinental or neritic sediment, while silicalite in Gyüzê La-Jiaqing area is characterized by weak negative Ce anomaly characteristic of sediment in transitional belt between oceanic basin and continental margin.

硅质岩Ce异常特征是构造背景判别的最有效的手段之一，冈底斯构造带谷露、新认朗与拉孜地区的硅质岩Ce负异常不明显，属大陆边缘或浅海环境，而九子拉家青地区的硅质岩具弱的Ce负异常，属大洋盆地与大陆边缘之间的过渡环境中的沉积。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。