Ventilation: positive downdraft exhaust ventilation should be provided to maintain vapor concentration below TLV.通风: 为了使气体聚集程度维持在阀极限值之下,应提供通畅的向下棋流排气通风设施.Water vapor from the evaporative recovery process may be recondense...
献祭了两头白牛，并举行了盛宴。Two white bulls were sacrificed and a feast was held.献祭有双重起源.Sacrifice had a double origin.播种期献祭和某一颗显眼的星星在南方或北方出现联系在一起.The seed - time sacrifice was linked up with the southing or northing of some prominen...