英语词汇“post drill”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

post drill n.

ΚΠ

1888 Science 13 Apr. 172/1 1 post-drill 15 inches.

1975 Publ. Amer. Dial. Soc. 1973 lix. 46 Post drill.., a drill supported by a post running from top to bottom immediately in front of the face which is turned and driven into the coal by rotating a handle that fits into a gear box mounted on the post.

2001 C. H. Wendel Encycl. Antique Tools & Machinery 60/2 Very early post drills in good condition will often bring over $200, with even the more common ones of the twentieth century bringing $100 or more at times.

单词	post drill
释义	> as lemmas post drill post drill n. ΚΠ 1888 Science 13 Apr. 172/1 1 post-drill 15 inches. 1975 Publ. Amer. Dial. Soc. 1973 lix. 46 Post drill.., a drill supported by a post running from top to bottom immediately in front of the face which is turned and driven into the coal by rotating a handle that fits into a gear box mounted on the post. 2001 C. H. Wendel Encycl. Antique Tools & Machinery 60/2 Very early post drills in good condition will often bring over $200, with even the more common ones of the twentieth century bringing $100 or more at times. extracted from postn.¹ < as lemmas
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