无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

The （） chamber is enclosed between the cylinder head and piston.

A.lubrication
B.injection
C.cooling
D.combustion

你可能感興趣的試題

單項(xiàng)選擇題

The （） of the lubricant should be sufficient to hold the film together, but it should allow the lubricant to flow easily.

A.specific gravity
B.viscosity
C.acid value
D.calorific value

單項(xiàng)選擇題

The （） of the diesel oil must not exceed 120 degree Fahrenheit.

A.temperature
B.pressure
C.acid value
D.viscosity

<dd id="575hh"></dd>

<dl id="575hh"><acronym id="575hh"></acronym></dl>

<ruby id="575hh"></ruby>