查询词典 air pressure

The pressure of the medium act against the two valve seats equally in reverse direction, so the pressure on the valve seat is offset, the valve core assumes relatively low pressure when the valve is open, in this way the overlarge displacement is obtained.

双平衡阀座：该阀利用双阀孔设计，介质的压力对两个阀座作用相等，方向相反，介质压力对阀座作用相抵消，阀芯在开阀时压力相对减少，从而获得超大排量。

The criterion is similar to hyperbolic strength criterion including uniaxial compression strength and uniaxial tensile strength, which is an extended form of Griffith-Murrell criterion essentially under the condition of polyaxial stress when hydrostatic pressure is lower, and it represents the first failure type. However, the criterion is similar to generalized Mises criterion when hydrostatic pressure is higher, and it represents the second failure type. The transition part between the two criteria represents the third failure type when hydrostatic pressure is high.

该准则包含单轴抗压和抗拉强度，在静水压力较低时，实质上它是Griffith-Murrell准则在多轴应力状态下的一种扩展形式，反映脆性岩石破坏类型1；在很高静水压力下该准则可转化为广义Mises准则，反映脆性岩石破坏类型2；而当静水压力较高时，该准则处于上述两种准则的过渡阶段，反映脆性岩石破坏类型3。

Based on some principal rules of brittle rocks polyaxial tests and previous researches, three controlling failure types for brittle rock are obtained. The first type represents the brittle failure controlled by extension microcrack under the condition of lower hydrostatic pressure; the second represents the ductile failure controlled by friction sliding action under the condition of higher hydrostatic pressure when microcrack is close; and the third represents brittle-ductile failure type controlled by multiple factors mentioned above under the condition of high hydrostatic pressure when some microcracks are open and others are close.

通过分析脆性岩石多轴试验中的强度和破坏规律，在已有研究成果基础上，将其强度和破坏控制类型主要归结为3种：类型1，低静水压力时裂缝张开扩展，主要表现为张性微裂缝控制型脆性破坏；类型2，静水压力很高时，裂缝闭合，主要表现为摩擦滑移控制型延性破坏；类型3，处于两者之间时，微裂缝一部分张开，一部分闭合，主要表现为两者复合控制型脆延破坏。

Through studying on the four kinds of pressure compensation containers,we select the precharge pressure accumulator as the pressure compensation containers of sampler.

通过对四种压力补偿装置的研究，选择了预充压力蓄能器作为取样器的压力补偿器。

Whys: Probe into the assistant function of the healthy education in lowing down the blood pressure to patients with high blood pressure; Appraise the impact of the healthy education on blood pressure lowing effect and its precognitive circumstance of the healthy knowledge.

目的 ：探讨健康教育对原发性高血压的辅助降压作用，评定健康教育对高血压患者降压效果影响与健康知识认知情况。

Methods To quantify the relative magnitude of the pulsatility to diastolic pressure, we made use of the ratio of pulse pressure to diastolic blood pressure.

方法对2002年12月1日至2003年3月31日期间我院119例住院高血压病患者的外周血压及心率变异指标进行测定，探讨搏动指数与心率变异的关系。

On one hand we take the waste gypsum, pyritic slag as the main resources. Proportion is such as follows: scree 15%, pyretic slag 30%, waste gypsum 45%, cement 10%, then take the semi-dried method, high pressure moulding to produce the waste gypsum and pyrite cinder brick which resist pressure is over 100~# brick resist pressure.

实验一方面以工业废石膏和硫酸烧渣为主要原料，按石屑15%，硫酸烧渣30%，废石膏45%，胶结料10%；半干法高压成型，再自然养护，制成废石膏硫酸烧渣砖，强度达到100~#以上。

Energy savings can be achieved in this distillation system by running one of the columns at a higher pressure and integrating the condenser of the high-pressure column with the reboiler of the low-pressure column.

它的基本原理是由一个高压塔和一个低压塔来构成一个精馏系统，高压塔的塔顶蒸汽作为低压塔的塔釜供热，以节省能耗。

The compression heating characteristics of three pressure-transmitting fluids such as dioctyl sebacate,water and ethanol in high hydrostatic pressure processing were investigated via the on-line measurement of temperature by inserting the probe into the high-pressure cavity.

通过将温度探头伸入高压腔内在线测定了3种传压介质(癸二酸二辛酯、水、无水乙醇)的温度变化情况，研究它们在不同条件下的压致升温规律。

At first, the method used the finite element method to design the combination plan of submains and hollow forgings capable of meeting with the requirement of the douches in a micro-irrigation system that the water flux and water-discharging uniformity of the douches be equilibrated, and the pressure heads of the correspondent submain units; next, the parameters of the design and the pressure heads were input into the dynamic programming model and then the optimal combination design of the diameters of various orders of micro-irrigation pipes in the system as well as the pressure heads necessary to operate the system was obtained.

提出了一种基于有限元法和动态规划法的微灌系统管网优化设计方法，该方法先利用有限元法，设计出符合灌水器平均流量和灌水均匀度要求的支管与毛管参数组合方案，及相应的支管单元操作压力水头，然后将这些参数组合与支管单元操作压力水头代入动态规划模型，即可设计出微灌系统各级管道管径的最优组合方案，并确定微灌系统所需的操作压力水头。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。