99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

<abbr id="facam"><output id="facam"></output></abbr>

<dd id="facam"></dd>

<ruby id="facam"><output id="facam"></output></ruby>

單項選擇題

Distortion of the spray pattern of a nozzle or injector may be indicated by a/an（）

A.high firing pressure
B.overload of that particular cylinder
C.smoky exhaust
D.cooling water temperature rise

你可能感興趣的試題

單項選擇題

The rate of pressure rise during the period following fuel ignition in a diesel will result in （）

A.valve overlap
B.volumetric efficiency
C.turbulence of the air change
D.fuel efficiency

單項選擇題

Higher than normal temperature air passing through the intake of a diesel engine will result in（）

A.greater overall efficiency
B.greater fuel economy
C.lower horsepower
D.lower compression ratio

<pre id="p5jmy"><acronym id="p5jmy"></acronym></pre>

<dl id="p5jmy"></dl>