| 单词 |
stemmer |
| 释义 |
▪ I. stemmer1 Mining.|ˈstɛmə(r)|
[f. stem v.2 + -er1.]
a. A metal bar used for stemming; a tamping bar.
b. (See quot. 1909.)
1860Mining Gloss., Derbysh. Terms 44 Stemmer, a piece of iron with which the clay is rammed into the shot holes to make them water tight. 1909N. Hawkins' Mech. Dict., Stemmer, in mining, a copper or bronze rod inserted into a powder charge, so as to leave a passage through the tamping for the fuse; a blasting needle.
▪ II. stemmer2|ˈstɛmə(r)|
Also stemner.
[f. stem n.1 + -er1.]
(See quot. 1858.)
1858Jrnl. R. Agric. Soc. XIX. i. 193 All trees are here [Sussex] cut down with the saw, and the stump, though quite level with the ground, is called the stem. This stem throws up shoots all round; the strongest is frequently left, and the rest cut off with the bill-hook. In time this shoot becomes a worthless tree, called a ‘stemmer’. 1878[see tiller n.3 2]. 1895Lease (Surrey), All timber and other trees, tellers, stemners, already let to stand for timber and saplings.
▪ III. stemmer3|ˈstɛmə(r)|
[f. stem v.4 + -er1.]
1. In Tobacco manuf., the workman who ‘stems’ tobacco-leaf; a stripper.
1895Funk's Stand. Dict.
2. A machine for stemming grapes, etc.
1898Year-bk. U.S. Dept. Agric. (1899) 558 Crushers and stemmers capable of working up 300 tons of grapes per day. |
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