查询词典 tree-fern

In the process of constructing a decision tree, the criteria of selecting partitional attributes will influence the classification accuracy of the tree.

在构造决策树的过程中，属性选择将影响到决策树的分类精度。

We can envisage a subject situated in front of a tree in the garden, and being perceptually related to it, sufficient to have the thought that there is a tree in the garden.

我们能设想一个主体置于花园里的一棵树面前，和它有感知关联，足以拥有这样一个thought：在花园里有一棵树。

Power system ; cascading failures ; circulating perfectible search mode ; fault chain figure expression method of tree structure ; fault tree

电力系统；连锁故障；循环完善搜索模式；树状结构事故链图形化表达法；故障树

It indicate that 200μmol/m2s and 80μmol/m2s low light cause reactive oxygen species quick producing and SOD and CAT acticity enhance, but the latter's increasing cann't offset reactive oxygen species'quick producing, which lead to membrance peroxidize injury on peach tree. 30μmol/m2s low light's injury on peach tree mainly because reactive oxygen species'accumulation.

表明200μmol/m2s和80μmol/m2s的弱光下桃树抗氧化酶活性的诱导提高不足以抵消弱光下自由基的快速生成，从而导致对桃树细胞膜脂的伤害；30μmol/m2s的弱光下桃树活性氧的快速生成加剧膜脂过氧化程度，是造成弱光对桃树伤害的重要原因之一。

The growth characteristics of Picea koraiensis stand at age of 10 in Maoershan and Liangshui provenance trials had a positive correlation with longitude, and with increase of tree age to 15 and 19, the tree growth of the provenances displayed a significant positive correlation with latitude as well as altitude.

如帽儿山和凉水试验地种源的生长性状在10年生时与地理经度呈一定的正相关，当试验林达到15和19年生时种源的生长与纬度和海拔出现显著的相关性。

BBSF achieves the scatternet subnets merger using a tree-like but "not true tree"topology structure,and the scatternet merger control pithily and effectively.It provides a new design method of distributed dynamical net forming in multi-hop environment.

BBSF算法利用一种无环连通的&类树&的拓扑结构实现各个散列网子网之间的融合，从而对于散列网子网间的合并可以实现简洁有效的控制，在多跳环境下提供了一种新的分布式动态组网设计途径。

Many researchers have determined and estimated tree transpiration by using the methods of rapid weighting, steady-state porometer, photosynthesis system, whole-tree photometer, ventilated chamber, weighting potted-plant, sap flow measurements, lysimeter, water balance, energy balance, Bowen ratio, eddy covariance, Penman-monteith Method, and remote sensing.

针对不同的植被覆盖类型，国内外许多研究通过各种手段和方法，如快速称量、稳态气孔计、光合作用测定、整树容器、风调室、盆栽称量、液流测定法、蒸渗仪、水量平衡、能量平衡、波文比、涡动相关、彭曼联合法和遥感等来估算林木蒸腾作用。

All homologous partial sequences of COI and 16S in Portunidae were collected from GenBank and aligned with the homologous sequences of P.trituberculatus. The NJ tree and MP tree were constructed using Kimura 2-parameter model. Homologous sequences (429 bp) of sampled specimen and genus Charybdis were aligned.

结合GenBank中收集的梭子蟹科COI，16 S rRNA两个基因所有同源序列信息，使用Kimura双参数模型采用邻接法、最大简约法构建梭子蟹科分子系统发育树；将样品蟹测得的COI基因序列和已知属的其他蟹同源序列(429 bp)进行比对分析。

This kind " tree tumour " grow what do not affect olive tree normally, return what can be used at nursery stock of progenitive olive growing to use.

这种&树瘤&不影响油橄榄树的正常生长，还可用于繁殖油橄榄苗木之用。

The MAP connecting pured peptide to the lysine-tree scaffolding has less crippled peptides and better reactivity.The MAPs linked to different lysine-tree scaffolding have different immunogenicity.

将支架结构上的氨基酸作为合成的结合位点，将已合成并纯化好的线形肽作为待连接的短肽，连接到支架上，从而得到残缺肽极少的分支状八肽，效果较好。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。