早期时，启动一台计算机意味着要给计算机喂一条包含引导程序的纸带，或者手工使用前端面板地址/数据/控制开关来加载引导程序。
In the early days, bootstrapping a computer meant feeding a paper tape containing a boot program or manually loading a boot program using the front panel address/data/control switches.
这就意味着只有阀门轴的前端面可以作为检测面。
This means that only the front of the valve shaft is accessible.
在飞轮前端面有一浅凹口，其用来确定第一个气缸中活塞的位置。
In the front face of the flywheel, there is a shallow indentation used to determine the position of the piston in the first cylinder.
第一金刚石砂轮体(3)的前端面的内侧优选形成大致研钵状的凹形。
The inner side of the head surface of the first diamond grindstone body (3) is preferably formed as a recess with a substantially mortar-like shape.
单长填砂管实验结果表明液气交替注入完全可以在岩心前端面形成质量较好的细腻泡沫。
Single long sand pack experiment indicated injecting foamer and nitrogen alternately could form fine and smooth foam at front end face of core.
分析了建筑铝合金型材挤压筒内衬破裂和挤压筒前端面与模套密封处磨损的原因，提出了相应的预防措施。
The causes which aluminium alloy profiles extrusion container internal wall is broken and front seal wall damaged are analysed. The relevant prevention measures are given.
分析了建筑铝合金型材挤压筒内衬破裂和挤压筒前端面与模套密封处磨损的原因，提出了相应的预防措施。
The causes which aluminium alloy profiles extrusion container internal wall is broken and front seal wall damaged are analysed. The relevant prevention measures are given.
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