CO2 LADEN METHANOL是什么意思？ 过去分词结构作定语，修饰后面名词，二楼理解正确。三楼的正好拧了 但an apparatus for cooling solids laden hot gasses 从句意上只能理解为 含热气体的冷却固体器，其实我理解它丢了一个词，with，正确的表达是： an apparatus for cooling solids laden with hot gasses查看更多
关于316L？ 300系列奥氏体不锈钢的简单介绍： 300 series—austenitic chromium-nickel alloys type 301—highly ductile, for formed products. also hardens rapidly during mechanical working. good weldability. better wear resistance and fatigue strength than 304. type 302—same corrosion resistance as 304, with slightly higher strength due to additional carbon. type 303—free machining version of 304 via addition of sulfur and phosphorus. also referred to as "a1" in accordance with iso 3506.[5] type 304—the most common grade; the classic 18/8 stainless steel. also referred to as "a2" in accordance with iso 3506.[5] type 304l—the 304 grade but specially modified for welding. type 308—used as the filler metal when welding 304 type 309—better temperature resistance than 304, also sometimes used as filler metal when welding dissimilar steels, along with inconel. type 316—the second most common grade (after 304); for food and surgical stainless steel uses; alloy addition of molybdenum prevents specific forms of corrosion. 316 steel is used in the manufacture and handling of food and pharmaceutical products where it is often required in order to minimize metallic contamination. it is also known as marine grade stainless steel due to its increased resistance to chloride corrosion compared to type 304. ss316 is often used for building nuclear reprocessing plants. most watches that are made of stainless steel are made of type 316l; rolex is an exception in that they use type 904l. also referred to as "a4" in accordance with iso 3506.[5] 316ti (which includes titanium for heat resistance) is used in flexible chimney liners, and is able to withstand temperatures up to 2000 degrees fahrenheit, the hottest possible temperature of a chimney fire. type 321—similar to 304 but lower risk of weld decay due to addition of titanium. see also 347 with addition of niobium for desensitization during welding.查看更多
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