left helix

The drawback of the right-to-left generation of wNAF is that it is not possible to merge the exponent recoding and the left-to-right evaluation stage,and additional storage is required.

目前最著名的带符号的表示方法是wNAF(non-adjacent-form),不幸的是wNAF编码只能从右向左产生,这使得编码阶段不能和较具优势的从左向右的计算阶段相结合形成有效的计算方法。

The left dislocation construction refers to a syntactic structure in which a constituent is moved to the beginning of a sentence and original position is usually marked by a pronominal element.

左向移位是功能语法中的一种句法结构,其中一个成分被移至句首是主位结构分析中的一个分支。