group vent 中文意思是什麼
group vent
解釋
組合透氣管-
4. three type of basalt is recognized in changle region : a, sapphire - embodied alkli - olivine - basalt of niushan group ( most distributed in fangshan ), enriched with a large number of mantle - orignated xenoliths with different extent of weathering ; b, alkli - olivine - basalt of niushan group with little sapphire embodied, but contan a few mantle - orignated xenoliths usually samller than that of fangshan, most of the mantle - orignated xenoliths weathered seriously only lefting with some vacant caves, this kind of rock mostly lies in cangshan, taohuashan. and qiaoguan volcanic vent, contain amount of ilmenite ; c, olivine - basalt of yaoshan group, contain neither xenoliths nor sapphire
4 、在昌樂地區區分出三類主要的玄武巖： a ，牛山組含礦的堿性橄欖玄武巖，位於方山，含大量的大小不一的風化蝕變程度不同的地幔巖包體； b ，牛山組幾乎不含礦的堿性橄欖玄武巖，含少量地幔巖包體，且包體一般比方山小，多數已經遭嚴重風化而只留下空洞，含有相當數量的鈦鐵礦，主要位於北巖南部的蒼山，桃花山及喬官火山口。 -
The e vent s ponsors include the bank of east asia ltd., fung lok wai wetland nature reserve, executive search group int l ltd, kerry holdings ltd., modern terminals limited and pacific tiger group
大會贊助機構分別為東亞銀行豐樂圍濕地自然保育區executive search group int l ltd嘉里控股有限公司現代貨箱貨櫃碼頭有限公司及pacific tiger group 。
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