That's because magnetic fields reduce the pressure exerted on the gases inside of them, making the spots cooler than the rest of the Sun's surface.
这是因为磁场降低了施加在内部气体上的压力，使得太阳黑子比太阳表面的其他部分温度更低。
A metal strain gauge on the surface of each membrane senses that deflection and generates a signal that indicates pressure.
在每片硅原子膜的表面有一个金属制压力感应器，能检测压力的大小并发出信号。
Once they hit the edge of a cone, drops are propelled towards its base, the least curved region, because of the pressure difference caused by surface tension.
一旦水滴流到了圆锥体的边缘，就会在锥体表面张力所形成的压力差的作用下流向它的底座，那里是曲线弧度最小的地方。
Brought about by the constant pressure of lying on a stationary surface, painful ulcers can involve substantial skin loss, sometimes exposing muscle and even bone.
由于躺在静止的平面上持续产生的压力，疼痛性溃疡会伴随大面积皮肤脱落，有时露出肌肉，甚至骨头。
Wave action applied pressure to the bottoms and sides, and the pressure propagated up through the ice to the surface.
海浪的作用力向其底部及侧部挤压，这股压力向上传递至冰山的表面。
Air pressure on the surface of the Earth is fairly constant, so in designing a microphone for use on land, engineers don't have to worry about large variations in air pressure.
地球表面的气压相对稳定，因此设计地面用的传音器，工程师并不需烦恼气压的大幅变化。
The system senses the positions of the fingers and, by calculating the surface area of a finger touching the screen, its relative pressure.
通过计算手指接触到屏幕的面积和相对的压力，这个系统能感应道手指的位置。
The analyzed low-pressure center at the surface was located ~8 km east of the mesocyclone.
所分析的地面低压中心位于中（尺度）气旋之东约8公里处。
The pigment is introduced into the airbrushing gun and using low pressure the gun will pulverize the makeup on the surface of the skin.
将粉底颜料装入喷枪中，使用低压将粉碎后的粉底颜料喷到皮肤表面。
This pattern is consistent with the passing of a cold weather front bearing a strong area of low pressure at the surface.
沙尘暴的这种分布型式与地面冷锋造成的强低压区相一致。
The surface gravity, which is defined from the 1 bar pressure level in a gas giant's atmosphere, is 90 percent that of Earth's and the speed needed to reach low orbit is lowest of all the gas planets.
表面重力，这个气体巨人的大气层的气压水平限制在一巴范围，是地球的百分之90的并且需要达到的低轨道的速度是所有的气体行星的最低水平。
When they descend to 50 meters or deeper, they must return to the surface slowly, to allow their bodies to readjust to the lower surface pressure.
当他们潜到50米或更深之后，必须缓慢的回到水面，才能使他们的身体重新将压力调节到低一些的水面气压。
The paper introduced a spinning model surface pressure measurement sy which used in the wind tunnel.
本文介绍了可用于测量风洞中旋转模型表面压力分布的集成测试系统。
This article mainly analyses the factors that affect the precise indexer life, touching surface pressure, basic motion load and temperature factor for example.
着重分析影响精密分度装置寿命的接触表面压力，基本动载荷，温度系数等因素。
The speed fields and circulation distribution of wing-pylon combination, and the surface pressure distributions of the stores are given.
给出了机翼—挂架组合体的速度场，环量分布和外挂表面的压强分布。
The creep of a skin layer under a distributed surface pressure was solved by an analytical method using Hankel transform and Laplace transform.
本文利用积分变换方法求解皮肤层在表面压力作用下的蠕变响应问题。
The important role of liquid surface pressure control system on density of casting during die casting process and different process has been put forward.
论述在低压、差压铸造的生产过程中，液面加压控制系统对提高铸件致密度的重要作用。
Laser diffraction from liquid surface waves at low-frequency was experimentally realized, a laser diffraction technique for measuring surface tension and surface pressure was designed.
实验上实现了低频液体表面波的激光衍射，提出了激光衍射法测量液体表面张力和表面压。
The surface pressure coefficient and the minimum pressure coefficient of a bridge deck section are important parameters of the bridge.
桥梁断面表面压力系数、最小压力系数等是桥梁断面重要的参数。
The measurement technique of its surface pressure distribution is introduced in this paper, which employs a pair of laser range finders to measure the deformation of asbestos paper.
本文介绍一种利用激光扫描石棉纸的变形量，来测量气缸垫面压分布的技术。
The plug surface pressure profiles for the full-length plug nozzle at different NPR can provide valuable data for researching the truncated plug nozzle.
不同压强比下全锥塞式喷管的塞锥表面压强分布规律，可以作为研究截短型塞式喷管塞锥压强分布的基础。
The initial typhoon circulation is a bogus pattern determined by the central surface pressure and the maximum wind speed of the typhoon being predicted.
初始台风环流是由台风中心海平面气压与最大风速所确定的一个模型环流。
The influence of clearance between the nozzles and the model of the surface pressure was used in the hybrid extended-range technique of the side back jet.
在风洞实验中采用纹影照相和压力分布相结合的实验方法，确定了侧后向喷流复合增程技术中喷嘴—模型之间间隙的大小对表面压力的影响。
Surface pressure distribution can be used to describe the airfoil boundary layer flow well.
可用于表面压力分布以及描述翼型边界层流的。
An ideal experiment exhibits that pressure gradient force computations in the pressure terrain-following coordinate are sensitive to surface pressure.
在气压地形追随坐标中气压梯度力的计算对地表气压计算很敏感。
Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.
金属旋塞表面压向阀座环软支座表面，如阀芯和阀座环表面是同心的，就能得到双重严密的关闭。
Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.
金属旋塞表面压向阀座环软支座表面，如阀芯和阀座环表面是同心的，就能得到双重严密的关闭。
应用推荐