数学中“support

数学中“support support support support 请问英语中support item和committed usb keyboard legacy support是什么意思在BIOS设置中 印刷中pile是什么意思?例如 pile support plate fast The frozen subsoil prevents roots from growing deep enough to support them.请问to support them请问to support them在句子中做什么成分? 数学中supp是support的缩写吗？或是别的意思？举例来说，表达式supp(x)={k}是什么意思？k是某个自然数，x是若干个未知数构成的向量。 support是什么意思 request support support是什么意思 support是什么意思 support any support each workbench中fixed support与frictionless support有什么区别如题,小白总是搞不清这两者的区别,求大神告知! ASUS support CD do not support this Windows OS version请帮我翻译一下!在Windows Server 2003 Enterprise 中放入光盘之后提示这个对话框! they support the cables from which the bridge has been suspended.这句话中from是什么意思