The special trimming for the fluorspar in Hatch No.2 is up to our requirements demands .二舱氟石的特殊平舱达到了我们的要求.The raw materials used in the production of perfluoropolyethers are a mineral ( fluorspar ) and methane.用于生产全氟聚醚...
Classically, overweight people underestimate the volume of food that they consume.一般来说，超重的人往往低估自己摄入食物的量。Earthworms consume large amounts of soil, and produce a rich humus, perfect in texture.蚯蚓吃下大量土壤，排出肥力丰富、物理结构理想的腐殖质。So...
树脂从树皮的裂口自然地流出来.Pitch bleeds freely from break in the bark.有些树产树脂.Some trees afford resin.用于提取这种油的树脂取自于一种矮小坚韧的树。The resin from which the oil is extracted comes from a small, tough tree....