Each journal and pin should be examined for （） and groovin

【名词&注释】

喷油量(injection quantity)

[单选题]Each journal and pin should be examined for （） and grooving.

A. bridges
B. recesses
C. rears
D. ridging

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学习资料：

[单选题]柱塞偶件配合面磨损后会导致（）。Ⅰ.喷油压力下降；Ⅱ.喷油定时延后；Ⅲ.喷油量减少；Ⅳ.喷油时间延长。

A. A．Ⅰ＋Ⅲ＋Ⅳ
B. B．Ⅰ＋Ⅱ
C. C．Ⅱ＋Ⅲ＋Ⅳ
D. D．I＋Ⅲ

[单选题]The fine filters will be arranged （） one can be cleaned while the other is operating.

A. in order to
B. because of
C. so that
D. so as to

[单选题]The space between cylinder liner and jacket is called （）.

A. the cooling water
B. the circulating water
C. the cooler
D. the cooling water space

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