snowcatn.雪地履带式车辆snown.雪；积雪；下雪vi.下雪vt.使变白；雪覆盖Snow-mehing runoff融雪径流snow/ice disaster冰雪灾害snow measuring plate测雪板Snow is cementing.雪正在凝结。snow-icing traffic冰雪交通snow removal machine实时除雪snowblossom primrose雪花报春花snowlike consistence雪花状松紧度snow-storm pattern暴风雪样现象snow-dumping shaft积雪倾卸井