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head jack：头螺丝千斤顶

head harness 头部辔带 | head jack 头螺丝千斤顶 | head lamp deflector 头灯反射镜

cylinder head jack nut：汽缸盖起卸螺母

cylinder head gasket ==> 汽缸盖衬垫 | cylinder head jack nut ==> 汽缸盖起卸螺母 | cylinder head lock ==> 圆筒销子锁

L-head cylinder：形头汽缸

L形汽缸头 L-head | L形头汽缸 L-head cylinder | L形头发动机 L-head engine

Head lamp shell：前照灯外壳

Head lamp rim 前照灯灯圈 | Head lamp shell 前照灯外壳 | Head lamp support tie rod 前照灯架拉杆

head leader：影片片头、磁带引带、牵引片

head gap adjustment 磁头缝隙调整 | head leader 影片片头、磁带引带、牵引片 | head out 片头就位、片头朝外

head leader：片头引片

head lap ==> 端搭接 | head leader ==> 片头引片 | head length ==> 头长

cylinder head lifting bracket：缸盖挺柱座

cylinder head lifter bore;缸盖挺柱孔 | cylinder head lifting bracket;缸盖挺柱座 | cylinder head line;缸盖管路

T-head cylinder：形头气缸

T头螺栓 T-head bolt | T形头气缸 T-head cylinder | T形头发动机 T-head engine

pan head bolt：盘头螺栓

盘头(螺钉) pan head | 盘头螺栓 pan head bolt | 截锥头铆钉 pan head rivet

pit head：(矿)井口

air head (矿)通风平巷 | pit head (矿)井口 | beach head (军)登陆场

gladiolus：剑兰

3月23日 剑兰(Gladiolus) 花语:热恋 花占卜:你天性好动,爱冒险犯难,愈是困难或不可为的事情你愈有兴趣去参与,所以你很容易卷入感情纠纷之中,或者爱上你不应该爱上的人.

adustion of coal：煤的可燃性

adumbration 草图,轮廓 | adustion of coal 煤的可燃性 | advance 推进,进展;阿凡司电阻合金;提前,超前;预付