Check seals on fridges and freezers regularly.定期检查冰箱和冷冻柜的密封装置。Refrigerator - freezers will hold provisions to feed the 23 crew and 70 passengers for about a week.冷藏柜里的食品足够二十三名机组人员和七十名乘客维持大约一周的生活所需.Polyurethane is a commo...
Are the ship's main radio transmitter aerials earthed and radars switched off?液货船上主无线电发射机天线已接地且雷达已关掉?Dish aerials are highly directional.碟形卫星天线的定向性非常强。...the radio aerials of taxis and cars.出租车和轿车的无线电天线The coded sig...
Method: 4 cases with defect of alae the residual and flaps of nasolabial groove.方法: 用残余鼻窦组织做成带蒂半层组织瓣为衬里,鼻唇沟带蒂黏膜瓣做成鼻翼外侧面.Objective To supply anatomy data for repair of anterior cranial fossa galea aponeurotica vescularize...