平均

Aiming at the deficiency of the current fingerprint segmentation method at pixel and the segment limitation of the linear classifier, a new method of segmentation based on quadric surface model is proposed.

文中分析了指纹的前景点和背景点在指标CMV(C指像素点的方向一致性、M是像素点的平均灰度、V是像素点的平均灰度方差)下的空间分布特点，发现该空间下的指纹前景和背景区域具有线性不可分性，使用线性分类器进行分类具备一定局限性。

It is found that, the quantum fluctuations of charge number and phase-difference in free thermal state are related to not only the parameters of the circuit, but also the temperature, and the average energy stored in the capacitance and inductance is equal to each other.

结果表明，体系中电荷数及相位差在自由热态下的量子涨落不仅和电路中器件的参数有关，而且还和温度有关，且储存于电感中的平均能量和电容中的平均能量分别相等。

Methods 56 patients in esophageal and gastric variceal bleeding were allocated randomly into the control group and the treatment group. All patients were given basic treatment, the CG patients received pituitrin (0.2U/min) though micro infusion pump,octreotide 0.1mg were injected in the TG patients and infused continuously at a rate of 25 礸/h. The efficient hemostasis, rebleeding, the average bleeding time and blood volume were recorded. Adverse reactions such as the queasiness, abdominal distension, abdominal pain, diarrhoea, palpitaition and hypertension were observed.

将经胃镜证实的食管胃底静脉曲张破裂出血患者56例随机分成对照组(n=28)和治疗组(n=28)，两组在给予基础治疗的同时，对照组使用垂体后叶素0.2U/min微泵持续静脉滴注；治疗组使用奥曲肽，首次0.1mg静注，再以25μg/h微泵持续静脉滴注止血治疗，比较两组在止血有效率、再出血率、平均止血时间、平均输血量等止血效果及恶心、腹胀、腹痛、腹泻、心悸、胸闷、血压升高等不良反应上的差异，并进行统计学分析。

An average of 17.6 betel quids per day were consumed by each person who chews betel quid daily.

槟榔嚼食者平均每日嚼食槟榔 17.6 颗，平均23.8岁开始嚼食槟榔，约嚼食槟榔达31.3 年。

Results The personal doses range of radiotherapentic operaturs is 0.26-6.54 mSv/a, average 2.27 mSv/a. The personal doses range of radiodiagnosis operators is 0.12-3.24 mSv/a, average is 1.35mSv/a.

结果 放射线治疗工作人员个人剂量范围为0.26～6.54mSv/a，平均为2.27mSv/a；放射诊断工作人员个人剂量范围为0.12～3.24mSv/a，平均为1.35mSv/a。

The mean ages of the patients were 67.4 (59 to 71) and 69.9 (58 to 73) in the radiograph and MRI group.

其中摄片组平均年龄67.4岁(59～71岁)，MRI组平均年龄69.9岁(58～73岁)。

Eight hierarchical clustering methods including single linkage method, complete linkage method, median linkage method, centroid method, unweighted pair-group average method, Wards method, flexible-beta method and weighted pair-group average method were combined with three sampling strategies, random, preferred and deviation sampling to develop 24-core collections.

川最短距离法、最长距离法、中间距离法、重心法、不加权类平均法、离差平方和法、可变法和加权配对算术平均法等8种系统聚类方法，结合随机取样法、优先取样法和变异度取样法等3种取样方法，发展了24个水稻核心种质库。

Dollars / sq m to calculate, passive investment recovery period is about 42 months, the rate of return of about 25% of annual rent around the office were noticeably higher than the rate of return of about 20% of the rent level is generally higher than the current rate of return on equity investments.

按照中档商业物业平均售价4200美元/平方米，平均月租金100美元/平方米来计算，静态投资回收期约42个月，年租金回报率约为25％左右，明显高于写字楼的租金回报率约20％的水平，也高于目前股票投资的一般回报率。

For the simple network with several routers, we propose a discrete time feedback control system model and a set of recursive equations to describe it. The numerical examples about the bifurcation of average and instantaneous queue size along with the variety of exponential averaging weight w, RED control parameter qmax, pmax and system parameter K are shown.

对拥有多个路由器的简单网络，提出了离散时间反馈控制系统模型，推导出可以研究网络非线性本质的递归方程，针对指数平均权值w，RED控制参数qmax， pmax和系统参数K的变化，进行了平均和瞬时队列长度的分岔数值实验。

Oceanographers use it to study ocean currents. Because the instantaneous SSH above a reference ellipsoid can be computed from satellite altimetry, MSS is derived from SSH.

本文首先讨论了由多种测高数据建立平均海面高模型的理论与方法，考虑了海平面高格网化的方法，然后联合利用多种测高数据确定了中国海及邻海（北纬1oN ～41oN ，东经103oE ～137oE ）的格网分辨率为2￠′2￠的平均海面高模型。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。