单项选择题
A.No fuel will be delivered
B.The maximum effective stroke will be attained
C.The fuel delivered to the cylinder will be excessive
D.The injection nozzle will overheat and carbonize
单项选择题 If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will （）
单项选择题 The double bottom in a vessel is a space comprised of （）
单项选择题 The lowest temperature at which fuel combustion becomes self-sustaining in the presence of a source of ignition, is defined as the （）