A negative face has an outward normal pointing in a direction opposite that of the positive x-axis.
负向的外法线指向与正x轴相反的方向。
We hope that France take positive actions to create conditions for the bilateral relations to return to the normal track.
我们希望法方能采取积极行动，为中法关系尽快回到正常轨道创造条件。
But that introduces false positive results; in other words, some normal tissues are marked as suspicious.
但这却导致了假阳性的结果，换句话说，一些正常的组织反而被怀疑癌变。
Initial test results received on 27 September were negative for the H5 virus subtype and positive for the H1 subtype, indicating an infection with normal seasonal influenza.
9月27日获得的初步检测结果为H5病毒亚型呈阴性，H1亚型呈阳性，表明感染正常的季节性流感。
"Everyone knows that he stayed in hospital for tests, that's normal when you suffer a dizzy spell, all of this looks positive," he said.
大家都知道他住院是为了方便检查。头晕的时候做这些检查时很正常的，而且结果表明一切都很好。
"We've tried to be very positive and keep things as normal as possible and she has definitely been reassured by that," says Charlotte.
“我们已试着让自己很乐观并努力让事情与以往相同，她显然也因此放心了。”夏洛特说。
It's absolutely normal to express your emotions, smile, joke and share your positive mood with people around.
表达你的感情，微笑，笑话，与周围的人分享积极的情绪，绝对是正常的。
In normal optical fibres made from materials with positive refractive indices, this makes the effective thickness of the cable greater than its physical thickness.
在正常的用具有阳性折射指数制作的多个光导纤维中，这种情况会让电缆的有效厚度高于它的实际物理厚度。
In general, children with low birth weight had poorer lung function, appetite and motor function than normal birth-weight children, as well as being more anxious, less positive and less lively.
一般说来，极低出生体重儿与正常儿相比，肺功能，食欲及运动功能都要差，也更多见焦虑，不象正常儿一样积极，活泼。
Results : ( 1 ) The positive expression of MMP - 2 reinforces gradually from normal villus, benign mole to malignant mole which has statistically significance ( P < 0. 05 ).
结果（1）从正常绒毛→良性葡萄胎→恶性葡萄胎，MMP-2的阳性率有升高趋势，差异有统计学意义（P〈0.05）。
So there were respectively 10, 7, 8, 9 rats in normal control, diabetes control, positive control and experimental groups who entered the result analysis.
实验结束时，正常对照组、糖尿病对照组、阳性对照组和实验组分别有10,7,8,9只进入结果分析。
In the stepwise regression model, preoperative normal sensory function was a positive predictor and worker's compensation a negative predictors of overall clinical success.
在逐步回归模型中，术前感觉功能正常是正向预测因子，而工伤保险赔偿是完全临床治愈的负性预测因子。
This paper discusses the technical requirement and working principle of this equipment. It also discusses positive function to communication equipment security and normal operation of ring network.
围绕该装置的技术要求、工作原理设计，以及它对通信设备安全、环网正常运行所起的积极作用进行了论述。
The normal atom has an exactly equal number of positive and negative charges, so that the atom as a whole is neutral.
正常原子中正负电荷数十完全相等的，所以从整体上看原子时中性的。
The volcanic eruptions are correlated with geoid, the positive geoid anomaly can build up high normal stress, which is in favor of huge eruptions.
火山喷发活动还与当地的重力势有关，重力势正异常可能与高的正压力有关，有利于产生特大喷发。
Results in all normal subjects, stimulation of the infraorbital nerve on one side produced bilateral positive and negative waves.
结果刺激对照者一侧的眶下神经，可于双侧胸锁乳突肌引出正负波。
Methods The male SD rats were divided into normal group, model group and positive drug group, extract group and remainder group.
方法雄性SD大鼠随机分为正常对照、模型、阳性药、提取物及提取剩余物组。
The neurofilament protein immune-positive neurons and gray scale in ipsilateral oculomotor nucleus in all neurotrophic groups were significantly increased compared with normal saline group (P< 0.05).
各营养因子组术侧动眼神经核的神经丝蛋白免疫反应阳性神经元数目和免疫染色强度均明显高于生理盐水组（P<0.05）；
The rats were divided into four groups: normal control group, kidney-yang deficiency model group, positive drug group, and YOL group.
实验分为正常对照组、肾阳虚模型组、阳性药物治疗组和颐和春治疗组。
The results showed that nasal resistance of positive allergen nasal challenge group was significantly higher than normal control group and negative group.
结果示变应原鼻内激发试验阳性者其鼻总阻力明显高于正常对照组和阴性组；
Results: In normal skin, there was little staining in epidermis with VEGF and only a few capillaries CD34 positive in dermis.
结果正常表皮VEGF几乎不染色，真皮见到少许CD34染色阳性的毛细血管。
Results There was no FOS immunoreactive positive neuron in the brain of normal rats.
结果正常对照组大鼠脑内无FOS阳性细胞出现。
I believe we should encourage positive news stories about people of all ages demonstrating that technology and other strategies can help people live normal, productive lives.
我相信我们应该支持正面的有积极意义的新闻，报导各个年龄段的重听人的故事，来说明通过技术和对策可以帮助人们过上正常的、丰富多彩的生活。
The results indicated that in the normal control rats, TUNEL positive neurons can be found sporadically in the brain cortex and can not be found in hippocampus .
结果发现，正常对照组大鼠大脑皮质可见散在的TUNEL阳性细胞，海马区未见TUNEL阳性细胞。
In this paper, we study the condition which makes the fundamental group of graph have every positive integer as the index of some normal subgroup.
本文主要研究图的基本群的正规子群的指数何时成为任意正整数的条件。
The dorsal part of the common foregut and the normal esophagus were negative for PAS. FGF7, 10 were expressed on the places where the PAS staining were positive.
PAS染色及FGF7、10免疫组化染色可见前肠背侧半及食管为阴性， 前肠腹侧半及气管部分为阳性；
Negative matter is a hypothetical form of matter whose mass is opposite in sign to normal positive matter.
负质量是一种假象的物质形式，其质量在标示上与正常的正质量相反。
Negative matter is a hypothetical form of matter whose mass is opposite in sign to normal positive matter.
负质量是一种假象的物质形式，其质量在标示上与正常的正质量相反。
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