silica gel in 1.6 cm i.d.什么意思?主要是i.d.指的是什么?谢谢!

silica gel in 1.6 cm i.d.什么意思?主要是i.d.指的是什么?谢谢! silica-gel desiccant wheel是什么意思 mouldproof 跟silica gel什么区别? Silica gel is an amorphous inorganic polymer 帮忙看一下信用证这条要求是什么?Signed beneficiary's declaration certifying the absence of silica gel in packages.In case that packages contain silica gel a beneficiary's declaration must be presented certifying that the substance DMF i in situ silica是什么意思 silica gel干燥剂打开后怎么是黑色的 请问 base-deactivated particles of silica gel 这是什么柱子? 请问“glass silica gel thin layer chromatography plate”什么意思?非常感谢这个主要用途是什么? EACH BOX MUST HAVE THE SILICA GEL PACK.应该是客人对包装的一些要求 octadecylsilyl silica gel是什么色谱柱,能具体介绍下么 英语翻译Packing:In a soft pouch together with the Swedish instruction sheet,cleaning cloth and 2pcs silica gel bag (干燥剂),then into bubble plastic and a 3-ply white mail order box.Each mail-order box should be able to stand for 1 m drop test Silica Gel 硅胶干燥剂能使用多久?是不是空气中暴露了就没用了?一般石灰干燥剂,如旺旺雪饼里面那种,如果放在空气中,过会就会吸附水分而发涨,再也不能用了.而Silica Gel 硅胶干燥剂有时候就 SILICA是什么意思 英语翻译A composite using polyaniline (PAni) as the conducting polymer and silica sol–gel as the host matrix was prepared by the template method.o(∩_∩)o... 英语翻译AbstractThis paper presents results of tests performed to investigate the effect of gas rate (1.2–2.5 cm/s),hydrophilic fines content (5–20% w/w silica) and froth depth (10–30 cm) on fines recovery in a laboratory-scale flotation co fused silica是什么意思 unpatterned fused silica是什么意思