查询词典 alternate function

The key technique to realize the system such as: the establishment of electronic map database ^ the search of the best pattu gobal position, map match and coordinate alternate etc, are discussed. The database of road information and main targets which is of much benefit to the realization of the system are built to manage the information of roads and main targets.

在研究电子地图数据库的建立方法时，为了克服现有电子地图的图幅接边在接边处会出现扭曲错位、难以管理地图信息、信息量少且难以更新等缺点，采用路网数据库和物标上题数据库来管理地图上的路网信息和主要物标信息。

Branchlets irregularly alternate, leaf scars often elliptic or on peglike projections; seed cones usually pendulous or erect; seed scales persistent at maturity.

不正规交替的小枝，经常省略和在钉状预测上的叶痕；球果通常下垂或直立；宿存的种鳞成熟时。

Leaves opposite, rarely spirally alternate and then leaf blade peltate; leaf blade usually symmetric.

叶对生，很少螺旋互生然后叶片盾形的；叶片通常对称。

Staminodes 3 or rarely absent, alternate with petals, often clawed, 2-cleft or 2-brachiate and branches with penicillate hairs.

退化雄蕊3或很少无的，与花瓣互生，通常具瓣爪，2半裂或者2具臂和分支有具毛撮毛的。

Leaves alternate; petiole usually long, apex or base of leaf blade 2-glandular; leaf blade simple, penninerved.

叶互生 ；通常的叶柄长，叶片的先端或基部2腺；叶片单叶，羽状脉。

Leaves alternate, shortly petiolate, simple, penninerved.

托叶小。叶互生，短，具叶柄，单叶，羽状脉。

Leaves basal and cauline, alternate, rarely opposite or whorled, simple or variously compound, palmately nerved, rarely penninerved, with or without stipules.

叶基生和茎生，互生，很少对生或者轮生，单叶或者复叶，掌状叶脉，很少羽状脉，有或无托叶。

Leaves alternate, often opposite or whorled in Peperomia , simple, base often asymmetric, palmately or pinnately veined.

叶互生，通常对生或轮生在Peperomia内，单，不对称的基部通常，掌状或成羽状脉。

The paper interprets alternant polarization phenomen on of even alternant hydrocarbons by discussing charge density on every position of even alternate when it is polarized using perturbational molecular orbitals.

文摘：本文用微扰分子轨道法讨论了偶交替烃被极化时各位置上的π电荷密度，解释了偶交替烃π电荷的交替极化现象。

Leaves opposite or alternate, petiolate, margin entire.

叶对生或互生，具叶柄，边缘全缘。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。