旋回木盖。
Place the screw back into the relief valve disc and tighten.
将螺丝放回到安全阀阀瓣内,并加以紧固。
Screw Rotation Feeds and Shears Material Into a Melt. Melt Collects Into Front of Barrel, Forcing Screw Back.
通过螺杆回转,熔体聚集于料筒前部,反作用力使螺杆后退。
SRC back One is called SRC for Source and one is called SRC.back which was my backup of today's source code in case I screw up.
其中一个叫SRC,用来装源代码,另一个叫,用来备份源代码,以防我搞砸了。
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