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

<ins id="num9k"></ins>

<ins id="num9k"><xmp id="num9k"></xmp></ins>

單項選擇題

If diesel oil in this tank is used, the （） of the oil must not exceed 120 degree F.

A.viscosity
B.flash point
C.acid value
D.temperature

你可能感興趣的試題

單項選擇題

Of a kind of liquid is used to cool the diesel engine, it is invariably called （）

A.lubricant
B.coolant
C.combustion product
D.second refrigerant

單項選擇題

If （） are taken at regular intervals, any unequal distribution of load will be easily found out.

A.differential of crank-webs
B.indicator diagrams
C.lube oil reading out
D.misalignment of crank-throws

<dl id="icknk"></dl>

<ins id="icknk"></ins>