以下哪些是边界条件（ ）： A: mass inlet B: velocity inlet C: outflow D: pressure inlet

以下哪些是边界条件（ ）： A: velocity inlet B: outflow C: pressure inlet D: mass inlet

Low pressure of the lubricating oil is monitored ______. A: at the common outlet to the engine B: at the common inlet to the engine C: at both the inlet and outlet to the engine D: at either the inlet or outlet to the engine

Engagement refers to： A: occipital bone enters pelvic inlet plane B: parietal bone enters pelvic inlet plane C: biparietal diameter enters pelvic inlet plane D: biparietal diameter enters the plane of ischial spine

In an engine with air inlet valve and exhaust valve on its cylinder heads the fresh air will enter into the cylinder （） and the gases exhaust （）， there being an adequate overlap between the inlet opening and the exhaust closing.

An increase in the air inlet manifold pressure of a diesel engine will result in a/an （）.

The period when both inlet valves and exhaust valves are open is referred to as （）.

The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between （）.

The fishing village, where lives 2000 fisherfolks. was on a small______ of the sea. A: cape B: inlet C: port D: gulf

In an automatic transmission, the shift lever hooks up to the( ). A: inlet valve B: vacuum modulator C: manual valve D: throttle valve