Sunday, April 13, 2014 at 6:45PM. Generations of southerners have welcomed Chinese snowball viburnum, Viburnum macrocephalum 'Sterile', into their gardens. With multitudes of flower clusters up to eight inches across, this classic shrub is a thing of beauty when it blooms.
Stroke refers to how the pistons move in the cylinder(s). The basic meaning is the length of the piston travel. Short stroke engines can turn over faster, but long stroke engi â¦ nes tend to have more pulling power. Stroke can also be used as 2-stroke and 4-stroke, which refers to the different work phases of the engine.
These adjectives refer to something marked by great speed. Fast and rapid are often used interchangeably, though fast is more often applied to the person or thing in motion, and rapid to the activity or movement involved: a fast runner; rapid strides.