focus - a fixed reference point on the concave side of a conic section geographic point, geographical point - a point on the surface of the Earth ground zero - the point of detonation (or above or below) of a nuclear weapon hot spot, hotspot - a point of relatively intense heat or rad...
If successful, the two satellites will be positioned at the L2Langrangian pointof the Sun-Earth system, some 1.5 million km from the Earth in the opposite direction to the Sun. Alcatel to Build ESA Herschel and Planck Research Satellites ...
Located on the Pacific Ring of Fire, Japan is one of the most earthquake-prone countries in the world, with thousands of small earthquakes occurring each year, and the continuous threat of a "big one." Currently, predicting ... Earth Sciences ...
1.2 shows a limited use of this technique in connecting together chassis, mains earth, power supply ground, and 0-V returns to one point. It can also be used as a local subground point on printed circuit layouts. When comparatively few connections need to be made, this is a useful and ...
3A), moving the point α(before) to the new point α(after) is prorated by centring the groove-boundary in the following manner: [length between the ridge and α(before) = x]: [length between α(before) and groove-boundary = y] = [length between the opposite side of the ridge and...
(a), in relation to the extent of the side rail, towards the A-post such that, when the base plate is pivoted about an imaginary point S through the angle $g(a) towards the side rail, the lower free end of the guide rail (5a) on the A-post side is lifted over the securing ...
Atlantic multidecadal variability is a coherent mode of natural climate variability occurring in the North Atlantic Ocean, with strong impacts on human societies and ecosystems worldwide. However, its periodicity and drivers are widely debated due to the short temporal extent of instrumental observations...
Here we present multi-point Cluster observations of a reconnection event in the near-Earth magnetotail where the diffusion region was nested by the Cluster spacecraft; we compare observations made simultaneously by different spacecraft on opposite sides of the magnetotail current sheet. This allows ...
阅读理解 Last week, we explained that the planet Mars had passed“opposition. It passed a point opposite the Sun.This week, we tell about the planet’s surprising motion among the stars. For thousands of years, people have recognized that planets
FORMED ON THE OUTPUT EDGE (109); EXTENDING THE FIRST WING FORMATION (110) TO A FIRST SIDE OF THE CUTTING BLADE (107) AND SERVING TO EXTEND THE SLOT FORMED BY THE ATTACK EDGE (108); EXTENDING THE SECOND FORMATION OF ALETA UP TO A SECOND OPPOSITE SIDE OF THE CUTTING BLADE (107) AND ...