查询词典 mean difference

There, the existence of a superior blood-clotting bandage can mean the difference between life and death.

在那儿，如果有优良的凝血绷带就意味着生死之差。

We see it in healthcare, where instant access to medical records can literally mean the difference between life and death.

我们看到它在卫生保健，如即时获得医疗记录可以意思之间的差额生命与死亡。

A well-spent morning can often mean the difference between a productive workday and not.

充分利用每个早上往往决定着一天的工作效率。

Mean temperature difference for countercurrent flow and cocurrent flow in steady continuous heat transfer has been deduced uniformly.

摘要采用统一的方法对定态传热逆流和并流的平均温差进行了推导。

In order to clarify the rules of POD isoenzyme in the hazelnut, identify their blood relations between female, male and filial generations and select the superior parents for cross-breeding, we have studied the characteristics of peroxidase isoenzyme which are distributed in the 34 hazelnut varieties or lines by polyarclamide gel electrophoresis, The results showed that:POD isoenzymes of Corylus heterophylla Fisch, Corylus avellana L, and the hybrid of Corylus heterophylla Fisch × Corylus avellana L had obvious difference; some hybrids had lost P10 spectrum band of parents; the enzyme spectrum of 32 hybrid hazelnuts produced 'new hybrid spectrum bands'that could be considered as a mean to identify hybrids.

为了阐明过氧化物同工酶在榛品种中的分布规律，探讨平榛、欧榛及其杂种榛之间的亲缘关系，选育优势杂交亲本，本试验采用聚丙烯酰胺凝胶垂直电泳，研究了34个榛品种成熟叶过氧化物酶同工酶酶谱特征，结果表明：平榛、欧榛及其平欧杂种榛品种间酶谱具有较大差异；有的杂种品种遗失了父母本共有谱带P10；32个平欧杂种榛品种出现了双亲所不具有的新酶带，可作为鉴别杂种的一条途径。

Relationship between DNA content and evolutionary degree DNA contents of bivalves were analyzed statistically with SPSS software at subclass, order, family and species grade respectively. Significant difference was detected between mean values of two subclasses according to the result of T-test. The DNA content of Heterodonta (3.77pg) was distinctly larger than that of Pteriomorphia (3.14pg). It was concluded based on ANOVA that the general trend of DNA content was to change from lower to higher values associated with evolution at higher taxonomical classification, i.e.

核DNA含量与进化地位的关系运用SPSS统计软件，在亚纲、目、科以及种4个分类等级上对双壳贝类的核DNA含量进行了统计分析。T检验结果显示，两亚纲核DNA含量的平均值有明显差异，异齿亚纲的核DNA含量平均值(3.77pg)显著大于翼形亚纲(3.14pg)，该结果表明，核DNA含量在较高的分类等级，即亚纲上表现出随着进化地位的升高显著增大的趋势。

The clinical characters of oligodontia concluded from this study are following:(1) There is significant difference that more teeth absent and more existent teeth anomalies in patients of oligodontia/S group than in patients of oligodontia/I group, and the peg-shaped upper lateral incisor is the most frequently affected teeth with shape anomaly.(2) Both of the two groups have no significant differences in number of teeth missing between maxilla and mandible as well as that between left and right side.(3) The distribution of teeth missing is bilateral symmetry in both groups, but the frequency of teeth lost are different: excluding the third molar, in oligodontia/I group, the lower second premolar is the most frequently congenitally missing tooth followed by the upper lateral incisor, while in oligodontia/S group, the most frequently missing teeth are mandibular canine and maxillary lateral incisor. Nevertheless, the first molars are the most stable teeth in both groups.(4) In oligodonita/I group, the mean mesiodistal dimensions of all type of existent teeth are significantly smaller than normal value. It is implied that oligodontia is not an isolated phenomenon, but is related to a complex of other dental changes.

对于口腔多个恒牙先天缺失的临床特点有以下初步结论：(1)综合征型先天缺牙患者较单纯型先天缺牙患者恒牙缺失数目更多，平均分别为23.9个和14.9个，且现存牙齿有更多的形态异常，分别为7／10例（70％）和6／22例（27.3％），其中最常见的是上颌侧切牙畸形；(2)两种类型的多个恒牙先天缺失患者的缺牙数目在上下颌及左右侧之间均无差别；(3)两种类型的多个恒牙先天缺失患者在缺失牙位上均呈对称分布，但在具体牙位上有所差异：不计第三磨牙，单纯型先天缺牙最常缺失的牙位是下颌第二双尖牙、其次为上颌侧切牙；而综合征型先天缺牙最常缺失的牙位是下颌尖牙和上颌侧切牙；无论何种情况，第一磨牙均为牙列中最稳定的牙齿；(4)在单纯型先天缺牙患者中，现存恒牙的牙冠宽度较国人正常值偏小，差异显著，提示牙齿形态与多个牙先天缺失有一定相关性。

Methods 1020 patients (672 male, 348 female, mean age 57.8±2.4 yr) undergoing CAG or PCI were randomized into either the Angioseal group (CAG 380, PCI 120) or the Perclose group (CAG 392, PCI 128). The procedural success rate and occurance of local complications were compared between the two groups. Results Both kinds of devices had a high success rate (Angioseal 94% vs Perclose 96%) and there was no statistical difference between them.

l020例行冠脉造影及介入治疗的患者（男672例，女348例，年龄57.8±2.4岁）经髂动脉造影证实无血管闭合器使用禁忌，术后随机分为Angioseal组（CAG 380例，PCI 120例）和Perclose组（CAG 392例，PCI 128例），比较两组患者使用血管闭合器的成功率及局部并发症的发生率。

Mean ApoL I of keratinizing types(15.77±4.34) was significantly higher than those of nonkeratinizing types (8.03±1.70). The ApoL I increased from 6.51±0.58 with poorly differentiated cancers through 10.58±2.90 with moderately differentiated cancers to 18.41±4.49 with well differentiated cancers. There was no apparent correlation between ApoL I and sex, age, tumor size, tumor location and tumor infiltrative depth. The Kaplan-Meier survival curves between ApoL I＜10‰ and ApoL I≥10‰ have significant difference, while the former has a shorter survival time.

角化型ApoL I高于非角化型(P＜0.01)；肿瘤分化越好，细胞凋亡越多，低度、中度、高度分化ApoL I有差异(P＜0.05)；不同性别、年龄、肿瘤部位、长度、深度，其ApoL I并无差异；以10‰为界将ApoL I分组绘制Kaplan-Meier生存曲线，ApoL I≥10‰组术后生存率高。

After a mean follow-up of 1.8±1.1 years, of 7 PMR patients with positive results of AKA, 5 patients developed EORA, Only 1 patient developed EORA in 23 PMR negative patients with results of AKA.There weer significant difference between between the AKA positive and negative patients.

随访观观察8个月至3.5年，7例血清抗角蛋白抗体阳性的患者中，有5例修正诊断为老年类风湿性关节炎，而在23例血清抗角蛋白抗体阴性的患者中，仅1例修正诊断为老年类风湿性关节炎，两者比较有统计学意义。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。