N
one of a number of rods or tubes containing a neutron absorber, such as boron, that can be inserted into or retracted from the core of a nuclear reactor in order to control its rate of reaction 控制棒
The parts included "brakes, brake pads, brake shoes, ignition coils, water pumps, window regulators, suspension sway bar links, wheel hubs, anti-lock braking sensors, control arm bushings, transmission filters, pitman arms, tie rod ends, and suspension air springs, " the papers add.