Discusses the streamlines in central plane and presents some expressions for flow rate and resistance coefficient.

讨论了中心面上的流线。给出了流量以及阻力系数的计算式。

youdao

For the cold protosolar accretion disc, convective instability will gradually end from the outer region to the center and from the surface to central plane.

原太阳吸积盘为冷的薄盘，盘中热对流不稳定性由外而内，由上而下地终结；

youdao

Besides the presidential couple, all other people on board the plane reportedly died, including the country's army chief, its deputy foreign minister, the Central Bank governor and scores of other officials, legislators and crew members.

VOA: standard.2010.04.10

The lithium-ion batteries used in Boeing's 787 Dreamliner are central to the design of a plane which is billed as being lighter and 20% more fuel efficient than earlier generations of jet.

BBC: Boeing 787: Dreamliner's lithium ion batteries probed

The gold was unloaded from a plane and taken under heavy guard to the Central Bank in the capital, Caracas.

BBC: Chavez repatriates Venezuela's foreign gold reserves

So we prefer to do an airlift - the difference being that you bring supplies in, in massive quantities by plane, to some distribution point or to a central point and then you move it out from there and that way you can spread the aid out to many places where they need it the most.

BBC: Afghan aid: What more can be done to help?