We are also making logistic arrangements as well as preparations to stock sufficient spares and back - up facilities to support the operation of meteorological systems 我们也作后勤安排，准备贮存足够的备用品及后备设施以支援气象系统的操作。
3.
We do have a flight spare that we could practice with , but we know from our experience with the cometary aerogel that it has changed somewhat in space ; it has become more brittle 我们确实有大量可供练习的备用品，但是我们从彗星尘埃的凝胶那里得到的经验是：凝胶在太空里发生了一些变化，变得更加易碎了。
4.
The enterprise schaefer wilhelm gmbh is well - known and engaged not only in mannheim , but also in the specialized industries of its sphere of activity , with imports , importer , spare part service and at the same time with rush service , dumpers and earth - moving machinery a competent partner Schaefer wilhelm gmbh是一家现代化的、可靠的专门产品供应商，这家供应商从事挖掘机,翻斗车,快速服务,备用品服务,总进口商,进口货、输入物,进口商,工业机械,紧凑型挖掘机,履带式装载机,爬行车焊缝,牧羊人,服务维修,土方工程机械,运输技术的制造、销售。
