And the nodal plane's going to be in the x z plane, or again, anywhere where phi is going to be equal to 0, that takes us to the x z plane.

节面是ｘｚ平面，又或者说是phi等于０的地方，这就是ｘｚ面。

麻省理工公开课 - 化学原理课程节选

The plane maker was up 0.4% in morning trade.

FORBES

From 25 April, passengers may bring blades shorter than 2.36in (6cm) and narrower than 0.5in in plane cabins.

BBC: TSA to allow some small knives in carry-on luggage

Its four turboprops provide it with a cruise speed of 0.72 mach at altitudes of up to 40, 000 feet and the plane has excellent low speed handling characteristics needed for paratroopers and load dropping.

BBC: A400M: Military workhorse