可传播的

The propagation of elastic wave in a cylindrical bore hole containing a fluid (for example, the muddy fluid is generally used) for acoustic logging is analyzed with a simplified model.

本文分析了简化模型下声波测井时裸眼井中弹性波的传播，此波场可看成是轴向传播有不同波矢的分波的叠加。

This part proposes the idea that media should pay special attention to the relationship with infector, consumer, competitor and interior staffs. Media should start to plan sustainable development of culture communication, and set agenda with pertinence, so as to carry out social marketing with all communication channels.

该部分认为：媒介社会营销必须注意处理好与影响者、消费者、竞争者、内部员工的关系，进行可持续发展文化传播规划，并根据媒介社会产品不同的情况有针对性地进行议程设置，通过各种传播手段实现社会营销的目标。

Most species of this family are adapted to disperse their fruits by animals, but some have their fruits dispersed by water due to a very thick fibrous mesocarp.

本科的种类多以动物传播种子，但有些果实可由水传播因具厚的纤维中果皮

Each kind of date age's muscovy duck may also infect the morbidity, epidemic disease propagation velocity is quick, one week may infect the entire group, the disease incidence rate and the mortality rate may reach as high as 80%.

各种日龄的番鸭也可感染发病，疫病传播速度快，一周可传染全群，发病率和死亡率可高达80%。

The seeds often furnished with apical pappus, can act as parachutes for wind-dispersal. Other achene with bristles can attach on animals for travel.

利用降落伞状的冠毛，可以藉由风力传播；长有勾刺的瘦果，则可附在动物身上传播到其它地方。

The pathogen is transmitted persistently by the Asian citrus psyllid, Diaphorina citri in Asia. In order to figure out the whole process of Las inside psyllids, and its ill effect on the psyllids.

此病可藉由无性繁殖体的嫁接方式与媒介昆虫来传播，在亚洲地区是由亚洲柑橘木虱 Diaphorina citri Kuwayama 以持续性方式媒介传播。

The invention changes traditional concept of medicament application and operational technique, overcomes shortage of sterilizing shearing tools in current leaf shearing and realizes sterilizing in real time during leaf shearing process and virosis spread controlling, and is characterized by easy operation and distinctive control effect and can be widely used in crop seedling course such as tobacco.

本发明改变传统施药理念和操作技术，克服了当前植物剪叶过程中采用剪叶工具间歇消毒的弊端，能够实现剪叶过程中实时在线消毒，控制病毒病的传播，操作简单，防效显著，可广泛应用于烟草等作物育苗过程中控制剪叶传播病毒病。

Hepatitis B virus can be transmitted from HBsAg seropositive preganant woman to her fetus through placenta.

乙型肝炎表面抗原阳性的孕妇可将乙肝病毒经胎盘传给胎儿，这种传播称为HBV的宫内传播。

China. Phytophthora sojae could be spread as oospores carried in soybean Seed, as well as oospores existed in soil and disease soybean residues.

大豆疫霉病原菌的卵孢子主要通过黏附在种子表面以及混杂在种子里的土壤颗粒进行传播，也可通过带病种子传播。

In addition to the direct transmission between plant and whitefly, geminiviruses can also be transmitted through mating and oviposition among whiteflies.

双生病毒除了在植物与粉虱之间直接传播外，还可通过烟粉虱交配及经卵携带的途径在烟粉虱个体和代别间进行传播。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。