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

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

單項(xiàng)選擇題

The cylinder liner forming the cylinder wall and the inside of the water jacket is called a（）

A.dry liner
B.wet liner
C.jacket liner
D.corrugated liner

你可能感興趣的試題

單項(xiàng)選擇題

Which of the listed devices could be used as a substitute for a ring grooving tool?（）

A.Steel brush
B.Fine emery cloth or steel wool
C.A section of the removed compression ring
D.A case hardened scraper

單項(xiàng)選擇題

In which of the scavenging methods listed will the exhaust valve be located in the cylinder head?（）

A.Return-flow
B.Uniflow
C.Cross-flow
D.Direct flow

<pre id="hmfgj"><strong id="hmfgj"></strong></pre>