- 春季采伐
- spring: n. 1.春季，春天。 2.青春；初期。 3.〔pl.〕 ...
- fell: n. feel Dr. Fell towards sb. ...
- felling: age; area; cycle; notch; operation; period; point; section; series; with axe; 采伐; 二重接缝; 伐木; 费灵; 砍伐; 咬口折缝
- advanced felling: 预备伐, 前伐
- allocation of felling: 伐木顺序
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