分成

According to the hydraulic property of overflow weirs under steady flow, the flow patterns of overflow weirs were classified into free overfall and submerged overfall, and numerical models for unsteady flow were established to simulate the two flow patterns respectively.

摘要为了对保水堰的交替水流进行数值模拟，依据保水堰恒定流情况下的工作特性，将保水堰的水流形态分成堰流和满流两种状态，分别建立保水堰不同流态下的非恒定流数学模型。

497 patients with acute cerebral infarction was fractionated 2 groups, First group had accepted therapy with 2 kinds or 1 kind of vasodilator agent; second group had accepted therapy with 3 or overtopping 3 kinds of vasodilator agent.

依据血管扩张剂的使用情况，将497例急性脑梗死患者分成两组，第一组使用血管扩张剂2种以下，第二组使用血管扩张剂3种以上。

This type of budget includes information that is grouped into three main categories: assets, liabilities and owner's equity.

这种类型的预算中包括的信息是分成三个主要类别：资产，负债和所有者权益。

Materials and methods:Male Sprague—Dawley rats were randomly divided into four groups as follow:Normoxia sedentary group,Hypoxic exposure group,Normoxia exercise group,living high training low group.the normoxia sedentary group lived in normoxic environment,hypoxic exposure group made hypoxic exposure for 12h in normobaric hypoxic tent(oxygen concentration 13.6%),Normoxia exercise group took 1h endurance exercise in normoxic environment at daytime,Hiho group was exposured in hypoxia at night after trained at daytime,the mode and duration of the both load were identical to hypoxic exposure group and normoxia exercise group.

研究方法：以雄性SD大鼠为研究对象，分成4组：常氧安静组、低氧暴露组、常氧运动组、高住低训组。常氧安静组在常氧环境下安静生活，低氧暴露组每晚在常压低氧(氧浓度13.6%)帐篷中低氧暴露12h，常氧运动组白天在常氧环境中进行耐力运动1h，高住低训组运动和低氧暴露的方式和时间分别同常氧运动组和低氧暴露组。

Patients in group L received 100mg of lidocaine by way of oxygenator 1 minute before releasing the aortic cross-clamping,and 12 patients in group C received 5ml of saline.

将24例冠心病患者随机分成2组：利多卡因组和对照组。L组12名患者于升主动脉开放前1min通过膜式氧合器的给药旁路给予100mg的利多卡因；C组给予5ml的生理盐水。

Bull; Pagination. Separate large amounts of content into individual pages to optimize system resources and minimize use of screen space.

bull；分页。将大量的内容分成单独的页来优化系统资源并最小化屏幕的使用。

Secondly, in order to avoid the subjectivity, the selected descriptors are divided into 10 categories by using Paired Comparison approach and Cluster Analysis method.

然后采用成对比较实验和聚类分析手段，依据人对词的理解差异将词汇分成10类，避免了研究者个体分类词汇的不确定性。

Seventy-two patients were prospectively randomized pairing and divided into observation group and control group, 36 in each group.

前瞻性地将72例椎动脉型颈椎病患者进行随机配对设计，分成观察组和对照组，每组36例。

On the basis of the instrumentation to study intact-receptor based on maxillary palp of cockroach Periplaneta Americana, a thermoplate was designed for constant temperature control during the experiment and a new electrode holder was also designed for improving reproducibility.

依响应频率将氨基酸分成了三类：响应频率最高的第一类为天冬氨酸、谷氨酸、甘氨酸和脯氨酸，其次为第二类包括组氨酸、精氨酸和苯丙氨酸，第三类为没有响应信号的包括丙氨酸、色氨酸、酪氨酸和苏氨酸等。

We have split the world into two pantomimic parts : the evil and the good.

现在我们把整个世界上的人分成了两种角色：坏蛋和好人。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。