通风

unwanted alarm

无用报警

unvented fire 不通风的火 | unwanted alarm 无用报警 | unwanted combustion 有害燃烧

upcast header

上升管联箱

upcast entilator 排气通风筒烟道抽风机 | upcast header 上升管联箱 | upcast header 上升管箱

uranography

天象图说

upward ventilation 向上通风 | uranography 天象图说 | uranus 天王星

uranography WESTBANK

天象图说

upward ventilation WESTBANK 向上通风 | uranography WESTBANK 天象图说 | uranus WESTBANK 天王星

Urban Renewal Authority

巿区重建局

Urban renewal 巿区重建 | Urban Renewal Authority 巿区重建局 | Ventilation 通风系统

VACP Vacuum Pump

真空泵

Vac.VV Vacuum Vent Valve 真空通风阀 | VACP Vacuum Pump 真空泵 | VACVV-T Thermactor Vacuum and Vent Control Valve 热反应真空与通气控制阀

artificial vagina

假阴道;人工膣

"人工甜味料","artificial sweetener" | "假阴道;人工膣","artificial vagina" | "人工通风","artificial ventilation; artificial draft"

vegetal cover

植被,植物覆盖

upper runner boss cover 转轮泄水锥上段 | vegetal cover 植被,植物覆盖 | ventilated manhole cover 通风式人井盖板

natural vegetation

天然植被,自然植被

natural vegetable tannin 天然植物丹宁 | natural vegetation 天然植被,自然植被 | natural ventilating dry kiln 自然通风干燥窑

vena contracta

射留缩

velocity vector 速度矢量 | vena contracta 射留缩 | ventilation loss 通风损耗

photoperiodic response：光周期响应

photoperiodic induction 光周期诱导 | photoperiodic response 光周期响应 | photoperiodism 光期性

Multi-Variate Statistical Analysis：多元统计剖析

311. 多项距阵 Multi-Nominal Matrix | 312. 多元统计剖析 Multi-Variate Statistical Analysis | 313. 发电厂 Power Plant