air tightness气密度
water tightness水密性;水密度,不透水性
词根:tight
adj.tight 紧的;密封的;绷紧的;麻烦的;严厉的;没空的;吝啬的
adv.tight 紧紧地;彻底地
tightly 紧紧地;坚固地
vi.tighten 绷紧;变紧
vt.tighten 变紧;使变紧
1.Inspection installation and water tightness transducer of echo sounder on berth.
测深仪换能器船台安装和水密性检查。
4.Strengthened side wall design and air-tightness can ensure your pleasant journey.
加强的胎侧设计,良好的跑气保用性能,让您出行无忧;