97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<ruby id="4x2h8"><output id="4x2h8"></output></ruby><dl id="4x2h8"></dl>

<dl id="4x2h8"></dl>

<pre id="4x2h8"><acronym id="4x2h8"></acronym></pre>

單項選擇題

The amount of fuel injected in a particular time, or degree, of crankshaft rotation is termed （）.

A.metering
B.timing
C.rate of injection
D.rate of distribution

你可能感興趣的試題

單項選擇題

A crankshaft whose center of gravity coincides with its center line is said to be （）.

A.dynamically balanced
B.statically balanced
C.counter balanced
D.resonantly balanced

單項選擇題

When centrifuging heavy fuel oil, an important factor to consider is the （）
(1) flow rate
(2) viscosity of the fuel oil

A.(1) only is correct
B.(2) only is correct
C.both (1) and (2) are correct
D.neither (1) or (2) are correct