背压力

The results of field test indicate that the earth pressure of abutment,different from lin...

有限元分析结果表明，台背土压力分布存在一定的空间效应，在同一深度上数值并不相等，中间大，两侧小。用库仑公式计算的结果比数值计算与实测的结果偏于安全。

The flow and pressure distribution of mid-part leeside of a slender are dominated by sweep wing and forebody vortices.

细长体中段背风侧的流动和压力分布受到后掠翼与头部背涡的双重控制。

When I am facing a lot of pressure at work, my back and neck will start to hurt.

在工作中面临许多压力的时候，我的背和脖子就会开始疼。

Dam deformation and inner water pressure of the penstock are main factors to cause axial tensile stress and circumferential tensile stress respectively.

坝体变位和管内内水压力分别是背管产生轴向拉应力和环向拉应力的主要因素。

So, the developmental degree of whaleback form is the sign of erosive landform by which we can judge whether the temperature of ice sole is at the pressure -melt point or not in an early period.

因此，鲸背岩的发育程度是判断早期冰底温度是否处在压力融点的侵蚀地貌标志。

BLD-3351 series pressure/ differential transducer has N type and S type; apheliotropic blue LCD screen overcomes unread ness in night;Intelligent series use local button, can adjust zero or reset range.

BLD-3351系列压力/差压变送器针对国内不同用户的要求，同时推出 N 型、和 S 型二种规格；背光蓝屏液晶表头克服夜间无法读数的缺陷；智能系列通过就地按钮，可现场调零或重新标定量程，通过手操器或通讯软件还可实现无源标定和数据组态。

Based on Mononobe-Okabe＇s postulation and the reasonable consideration for the restricted pore water, a first-order differential equation of the dynamic active earth pressure on rigid retaining walls with submerged backfills in the traaslational movement mode under earthquake loads is set up by using the method of level-layer analysis.

基于Mononobe-Okabe假定，在合理考虑土体孔隙中受限水含量的基础上，利用水平层分析法推导了填土中有地下水时刚性挡土墙平移模式下的动主动土压力强度的一阶微分方程，并求得非线性分布解：探讨了地下水位、受限水含量、填土的内摩擦角、墙背的摩擦角和地震系数等参数对土压力强度分布、合力作用点高度以及倾覆力矩的影响。

Pressure-relief valve is installing to use , should open the shut-off valve of the road of bypass pipe , remove the mixture of soda and the condenser water in pipeline, in order to avoid that pressure-relief valve produce water when opening 圾 phenomenon damage pressure-relief valve, will be the same as frequently phenomenon rear, press to obey the direction of hour hand slow revolving regulation screw, adjust outlet pressure to needed pressure ( is subject to valve rear gauge pressure ), adjustment is rear, carry locknut , twist protection cover.

减压阀在安装使用时，应把旁通管道的截止阀打开，排除管路中的冷凝水和汽水的混合物，以防减压阀开启时产生水圾现象损坏减压阀，当无异常现象后，按顺时针方向缓慢旋转调节螺钉，将出口压力调至所需的压力，调整后，将锁紧螺母背紧，拧上防护罩。

The space between the frangible disc and the pressure relief valve shall be provided with a vent valve, pressure gauge or suitable tell-tale indicator for the detection of disc rupture, leakage, and release the accumulated pressure between the space to prevent the pressure affect to it's setting pressure.

安全阀与爆破片之间的腔体应设置排气阀、压力表或其他合适的指示器等，用以检查爆破片是否渗漏或破裂，并及时排放腔体内蓄积的压力，避免因背压而影响爆破片的爆破压力。

The indoor model test using organic glass is carried out and the displacement, stress, earth pressure as well as its distribution type are measured to verify the theoretical values.

使用有机玻璃进行室内模型试验，实测了端墙的位移、路面板应力、端墙应力及土压力，验证了理论分析结果，获得了端墙背后土压力的分布形式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。