bolt core
常见例句
- Objective: To observe the effect of casting anatomy bolt post-core in restoration of residual crown and root of molars.
目的：观察分体栓道式铸造桩核在磨牙残冠残根修复中的作用。 - Automatic bolt assemble machine is a mechanical device which can continuously fit in bolt, iron core, the plastic platoon.
全自动螺钉装配机是对实现螺钉、铁芯和塑料排三种零件组成接线端子装配体的装配。 - The lock core bolt hole is internally provided with the lock core bolt;
在锁芯闩插入孔内设有顶推块和弹簧。
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