XPath and XSLT are useful for certain "data querying" purposes, but their application is far less broad and general than that of RDBMSs, and SQL, in particular.
虽然XPath和XSLT可用于某些特定的“数据查询”，但它们的应用远不及rdbms和(尤其是)SQL的应用广泛和普遍。
Evaporation ducts, or tropospheric ducts in general, can guide radio waves to distances far beyond the horizon with less attenuation, and then severely impair some certain radio wave system.
以蒸发波导为代表的对流层大气波导传播，可使电波在较小的衰减下沿波导传播得很远，从而严重影响合适的无线电系统。
Evaporation ducts, or tropospheric ducts in general, can guide radio waves to distances far beyond the horizon with less attenuation, and then severely impair some certain radio wave system.
以蒸发波导为代表的对流层大气波导传播，可使电波在较小的衰减下沿波导传播得很远，从而严重影响合适的无线电系统。
应用推荐