性早熟各期卵巢动脉血流呈高阻力型。
The ovarian arterial blood flow in various stages of precocious puberty showed a high impedance.
一般来讲,长时间佩戴高呼吸阻力的口罩可能对身体健康产生不利影响,所以不建议消费者长时间、超等级佩戴防护型口罩。
In general, a long-time wearing a mask with high breathing resistance harms health, which is thus not recommended.
离心式固液两相流泵叶片的边界层的理论分析,可以为分析流体在叶片表面沿程阻力提供基础,进一步也可以为确定叶片型线提供理论依据。
The theoretical analysis of boundary layer in vane of centrifugal two-phase flow pump may provide a basis for flow drag in vane surface and a theoretical evidence to determine vane curve.
通过实测资料检验,计算值与实测值符合良好,表明该公式可以较好的反映游荡型河道阻力沿河宽分布的特性。
Compared with the observed data and the computed value, it is shown that the formula can represent the law of resistance transverse distribution in braided river.
这种勺型状态与年龄较轻、不伴有糖尿病、慢性血管疾病积分较低以及阻力指数低有关。
Dipping status was associated with younger recipient age, lack of diabetes, low chronic vascular score, and low resistive index.
另外,本文还分析比较了S型和U型管道的阻力变化规律,提出可用线性叠加原理计算的判据。
In addition, variations in resistance of S-like and U-like pipes are analyzed and compared. And criteria suitable for linear superposition calculation are also presented.
并将岩体剪切损伤理论与常规剪切位移法相结合,研究了拉力型预应力锚索锚固段的荷载-位移特性、侧阻力分布特性以及轴力分布特性等。
The load-deflection characteristics of anchoring section of prestressed cable, lateral resistance distribution as well as axial load distribution of anchoring section are studied.
依据某型涡轴发动机冷运转试验数据,给出了发动机阻力矩和净力矩的计算方法。
Based on a turboshaft engine test data gathered during cold run, a method of calculating engine resistant torque and torque for acceleration was introduced.
对游荡型河流挟沙力、阻力沿河宽分布情况进行了研究。
To know the situation of sediment carrying capacity and resistance distribution along river width is the key point of the wandering river simulation.
现在役机组中的粗粉分离器形式大多为径向挡板型粗粉分离器,分离效率低,阻力大。
Among the coarse pulverized coal separators of generating units in operation, most of them are radial baffle type separator, with low separation efficiency and high resistance.
它们主要特征分别表现为:血管型以增加外周阻力为主;
The regulating characteristics of vascular type mainly showed an increase of total peripheral resistance during stress.
文章分析了空气流经倾斜“A”型直接空冷凝汽器时,凝汽器各部分阻力产生的原因。
The reason of condenser component drag is analyzed when air flows through tilted A-shaped direct air-cooled condenser.
并讨论了“圆型截面桩”与“矩形截面桩”极限阻力计算公式的近似转换。
Then the relationship of the ultimate resistance between round section pile and rectangle section pile is investigated.
本文还依据空气过滤理论,进行了大量的理论计算,绘制了关于纤维型滤料的效率、阻力和各有关因素之间的关系的曲线。
The curves of the relation between efficient value of fibre filter medium, resistance and other variables have been plotted based on the air filtration theories and theoretical calculations.
该低调型椭圆形镜片有效紫外线保护,并减少阻力,并提供良好的周边视力和清晰度,有助于减少亮度和眩光。
The low profile oval shaped lenses with UV and Antifog protection reduce drag and provide excellent peripheral vision, the mirror finish helps reduce brightness and glare.
本文用理论方法计算了兴波阻力和改良船型的型值。
The wave resistance and the offset of improved ship form are calculated by theory method.
为了获得流体在SK型静态混合器中湍流流动时的流动阻力规律,提出一种新的流体阻力的计算模型。
In order to acquire turbulent flow resistance rule in SK static mixer, a new numerical model of fluid resistance was put forward.
以水为实验介质,对SK型静态混合器流体湍流阻力进行了实验测量,回归出实验公式。
With water as experimental fluid, the turbulent fluid resistance in the SK static mixer was measured and the experimental formula was regressed by this experiment.
针对该型线又进行了不同水深的阻力模型拖曳试验,并根据试验结果讨论了高速艇的浅水效应。
Model tests for this hull lines are conducted at different water depth in towing tank, and the effect of shallow water on craft performance is investigated.
运用散体结构力学理论,以新的方法分析垂直型埋刮板输送机物料稳定输送的条件,并导出了物料运行阻力计算式。
Bulk mechanics theory is applied to discussing conditions that vertical en masse conveyor conveys material steadily and deriving resistance to moving material.
计算结果表明,贯入速率、地基土强度的各向异性与强度软化效应对于T型触探仪的贯入阻力系数影响较大。
The results show that the effects of strain rate, anisotropy of soil strength and strain softening on T-bar factor are appreciably large.
本文分析了在塑料熔体充满型腔的过程中,流动阻力及能量损失产生的形式和物理原因。
During the course of the plastics melt filling in the die cavity, the forms of the flowing resistance and the energy loss and the reason why they come into being are analyzed.
结果表明,变温马氏体相变及I/C相变过程中内耗均为粘弹性型内耗,是相界面在克服粘滞性阻力而运动时引起的。
The IF behaviour in the processes of MP and I/C phase transformations are nearly the same and is associated with the motion of phase interface under the action of phase transformation driving force.
针对自封式皮碗封隔器存在下井阻力大、皮碗易损坏和密封效果差等缺点,研制了HNX344—114型皮碗封隔器。
Model HNX344—114 cup packer is developed in the light of frequent failure and bad sealing effect of self sealed cup packers.
根据等值渗流阻力方法和水平井产能计算公式推导了鱼骨型水平井产能计算公式。
With equivalent flow resistance method and on the base of the productivity formulae of a horizontal well, a new productivity formula of a fishbone well was derived in the paper.
目的探讨眼球后血管血流速度降低及阻力指数升高与原发性开角型青光眼的关系。
Objective to determine whether lower blood velocities and high resistive index in the retrobulbar arteries are primary or secondary to glaucoma damage in patients with primary open-angle glaucoma.
试验结果表明:X型开缝翅片的波动强度、流动阻力大于圆弧型开缝翅片,但前者的换热性能和场协同性优于后者。
The experiment results showed that the fluctuation intensity and pressure drop of the X-type slotted fin surface were higher t.
山区型河道因河势变化急剧而产生的局部阻力对水流流态影响较大。
For a mountainous river, because of the great variation of river morphology along flow route, the local energy loss has a great impact on hydrodynamics.
型断面阻力系数雷诺数效应与近流线型断面规律相反,升力矩及升力系数雷诺数效应不明显;
Between the two type deck sections, the trend of mean drag coefficient varying with Reynolds number is opposite to each other, which challenges the traditional opinion on the blunt section;
型断面阻力系数雷诺数效应与近流线型断面规律相反,升力矩及升力系数雷诺数效应不明显;
Between the two type deck sections, the trend of mean drag coefficient varying with Reynolds number is opposite to each other, which challenges the traditional opinion on the blunt section;
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