| 释义 |
notching, vbl. n.|ˈnɒtʃɪŋ|
[f. notch v.]
1. The action or process of making notches, esp. in carpentry as a method of joining timbers.
1611Cotgr., Creneure, a iagging, nicking, notching. 1825J. Nicholson Operat. Mechanic 564 Notching admits two pieces to be joined at from one to four angles. 1847Smeaton Builder's Man. 80 The carpenter usually connects his timbers either by notching, or by mortice and tenon. 1875Knight Dict. Mech. 1534/2 Halving, scarfing, and cauking are forms of notching, and form a lap-joint.
2. A notch or notch-like incision.
1842Gwilt Encycl. Arch. 1008 Notching, a hollow cut from one of the faces of a piece of timber, generally made rectangular in section. 1849Murchison Siluria ix. 201 The galleries thus formed falling in, and producing furrow-like markings, with or without transverse notchings.
3. A method of planting seedling trees in which a slit is made in the earth to take the roots of the plant. Also attrib.
1847J. Brown Forester iii. 85 He [sc. the superintendent] must examine almost each tree as it is put into the ground, whether it may be done by the pitting or notching system. 1851Ibid. (ed. 2) iii. 237 The method of planting termed notching, or slitting, is done with the common spade or planting mattock. 1891W. Schlich Man. Forestry II. ii. 126 Notching..differs from planting with a peg in the shape of the planting hole, which is that of a notch. Ibid., The notching spade is wedge-shaped. 1930Forestry IV. 18 Notching. The idea behind this type of planting is to..make an opening quickly which is of sufficient size to take in the roots of small plants. 1953H. L. Edlin Forester's Handbk. ix. 145 A proper straight notching spade..has no ‘crank’ between handle and blade. 1967C. E. Hart Practical Forestry (ed. 2) iv. 63 The most usual method [of planting] is notching with a spade or a mattock.
4. A type of pruning in which twigs are partially cut to stimulate the growth of a bud lower down the twig.
1913J. C. Newsham Propagation & Pruning 23 Notching is used to force the development of particular buds, the notch being made in the bark and young wood immediately above the selected bud. 1916L. H. Bailey Pruning-Manual v. 127 Notching into the wood above a bud tends to produce strong growth from that bud. 1972G. E. Brown Pruning of Trees ii. 24 ‘Notching’ ..is carried out during the dormant season, when a notch is cut about 10 to 15 mm. above the bud, completely removing a wedge-shaped piece. 1974R. Grounds Practical Pruning iii. 29 The lowest branches resulting from the first year's notching are pulled down and tied at the horizontal. |