operator n. 1.操作者,机务员;司机,驾驶员;【军事】电话兵;【电话】接线员,话务员(=telephone operator);【电报】报务员。 2.(外科)施行手术者。 3.掮客,经纪人。 4.【语法】功能词。 5.【数学】算子,算符。 6.经营者;〔美国〕工厂主,资方。 7.投机商人,骗子;精明圆滑的人。 8.【戏剧】灯光助理员。 an operator's set 话务员的电话机。 a telegraph operator 电报报务员。 an unitary operator 公正算符。 a mine operator 矿山经营者,矿主。
root n. 鲁特〔姓氏〕。 n. 1.(草木、毛发等的)根;根菜,食用菜根;根茎,地下茎;块根;有根植物,草木,草;〔pl.〕根菜类;(山)麓。 2.根本,根源,原因;本质;基础,根柢;【语言学】词根;根词;【数学】根数,根。 3.祖先;【圣经】子孙。 4.【音乐】和弦基音。 the root of a tooth 牙根。 the root of all evil 祸根。 the root of a gem 玉根〔毛玉的非玉部分〕。 a cubic [second, square] root 立方[平方]根。 at (the) root 根本上。 be at the root of 是…的根本[基础]。 by the root(s) 连根,从根部,从根源 (pull up by the roots 连根拔除,根除)。 get at [go to] the root of 追究…的根底,追查…的真相。 lay the axe to the root of 根本改革;治本。 root and branch 完全,都;彻底地,急进地。 strike at the root of 打击…的根部,彻底摧毁。 strike [take] root 生根;扎根;固定,固着。 to the root(s) 充分地;竭力地;彻底地。 vi.,vt. (使)生根;(使)固定;(使)固着;〔比喻〕深深种下,使根深蒂固。 Terror rooted him to the spot. 吓得他呆立不动。 root up [out] 连根拔除(杂草等);肃清(反叛等)。 adj. 根的;根本的。 a root idea 根本思想。 vt.,vi. (猪等)用鼻子掘(地);搜寻 (for)。 R-, hog, or die. 〔美国〕拚命干啊,不然就得饿死。 vi. 〔美俚〕应援,声援;支持,赞助;欢呼,喝彩。
Returns the relative virtual path from one virtual path containing the root operator the tilde to another 返回从一个包含根操作符(代字号[ ~ ] )的虚拟路径到另一个此类虚拟路径的相对虚拟路径。
To overcome these disadvantages , asp . net includes the web application root operator , which you can use when specifying a path in server controls 为克服这些缺点, asp . net启用了web应用程序根目录运算符( ~ ) ,在服务器控件中指定路径时,可以使用该运算符。
For asp . net server controls and server code , virtual paths using the web application root operator , the tilde , commonly are used instead of relative and absolute paths 对于asp . net服务器控件和服务器代码,则通常使用那些采用web应用程序根操作符(即代字号“ ~ ” )的虚拟路径而不是相对和绝对路径。
Is not rooted ; that is , it does not equal the root operator the tilde , does not start with a tilde , such as a tilde and a slash mark or a tilde and a double backslash , or does not start with a slash mark , an 不含有根路径(即,该路径不等于根操作符(代字号[ ~ ] ) ;不以代字号( ~ )开头,如一个代字号后跟一个正斜杠( ~ / )或一个代字号后跟双反斜杠( ~ ) ;或者不是以正斜杠( / )开头) ,则会引发
Parameters are not rooted ; that is , they do not equal the root operator the tilde , do not start with a tilde , such as a tilde and a slash mark or a tilde and a double backslash , or do not start with a slash mark , an 不含有根路径(即,该路径不等于根操作符(代字号[ ~ ] ) ;不以代字号( ~ )开头,如一个代字号后跟一个正斜杠( ~ / )或一个代字号后跟双反斜杠( ~ ) ;或者不是以正斜杠( / )开头) ,则会引发
Different from the scattering theory used in the derivation of conventional generalized screen propagator , in this paper , a high order formula of generalized screen propagator for one - way wave equation is proposed by using the asymptotic expansion of single - square - root operator 摘要不同于常规广义屏传播算子的推导中使用散射理论,本文利用单平方根算子的渐近展开,推导出了单程波方程广义屏传播算子的高阶表达式。
Author , secondly , starts from the approximate expandness of square root operator , perform mathematical calculations for finite difference operator in frequency - space domain , fourier finite difference operator in mixing domain ( frequency - space and frequency - wavenumber domain ) and general screen operator in mixing domain , compare and discuss their precision of their wavefield , adaptability for lateral velocity variations , computation efficiency and stability . thirdly , author , applies the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) in frequency - wavenumber domain , to the prestack and poststack forward modeling and depth migration 第二,从平方根算子的近似展开出发对频率?空间域的有限差分算子、混合域(频率?空间域;频率?波数域)的fourier有限差分算子、混合域的广义屏算子进行了推导并对其波场描述精度、对横向变速的适应性、计算效率和稳定性进行了比较与评述。