查询词典 pest

Well, that's exactly what the people of Enterprise, Alabama, did on December 11, 1919, when they built a monument to the boll weevil, a tiny insect pest that devastated their cotton fields and forced farmers to pursue mixed farming and manufacturing.

嗯，阿拉巴马州企业市的居民在1919年12月11日，就帮棉子象鼻虫立了一个纪念碑。这种小型昆虫会破坏棉花田，而迫使农人必须要种植其他多种植物，与制造多种农产品。

Cotton bollworm is a pest of a variety of crops, which has a great power inreproduction.

棉铃虫是一种累灭不绝的农业害虫，究其原因，与其强大的生殖力不无关系。

Is a pest of sericulture,and the silkworm Bombyx mori L.

是蚕业的害虫，而家蚕Bombyx mori L。

The flash disks, with Octave, Matvec, PEST, VCE and R language installed, were tried to be an independent animal breeder's tool kit. Six different personal computers were tested. If USB flash disk is bootable in the tested personal computer, the Linux system can operate smoothly and breeders can manage his breeding data files in the hosted machine .

测试6种以上不同主机板电脑，结果发现制成的工具组套件若能完成开机，即可顺畅运作，并读出"宿主"硬碟中的育种资料，但现阶段制成的USB随身碟仍无法顺畅於各种不同的电脑开启。

The European corn borer is a common pest in this economically valuable crop.

欧洲玉米螟是一种经济作物玉米上的常见害虫。

Botanical Garden in the type and quantity of birds rich is conducive to pest control.

植物园中鸟类的种类和数量丰富，有利于病虫害的控制。

The main information deal with the topics as follw: PlantFacts database, which searches for content from over 46 university and government sources; buckeye yard and garden online, which provides timely information about Ohio growing conditions, pest, disease, and cultural problems; weekly newsletter; and professional institute information.

主要涉及以下几方面的信息：PlantFacts数据库，可提供46所大学和政府的资源；在线七叶树园与园艺，能及时报道俄亥俄州植物生境、虫害、疾病与种植问题；每周新闻；以及专业机构的信息。

In the forests of New Brunswick, for example, various pesticides have been sprayed in the past 25 years in efforts to control the spruce budworm, an economically significant pest.

例如，在NB的森林里，过去的25年里，多种杀虫剂被喷洒以控制云杉蚜虫，一种经济上严重的病害虫。

Remote sensing for the detection of pest damage is an important element in forest management, This study describes the application of Landsat-5 Thematic Mapper digital data, using the Perceptron image analysis system, for the detection of western spruce budworm damage on Douglas fir stands near Cache Creek, British Columbia, Canada.

森林虫害监测是森林经营管理中的一个重要内容，为此作者利用陆地卫星第5号的主题成图仪数据，在加拿大不列颠哥伦比亚省卡奇河试验区对花旗松林被云杉茅卷蛾危害的状况进行了监测。

According to climatic feature of northeast areas and biological characteristics of butterfly orchid ,key measures of cultivation and management technique for butterfly orchid in different-periods and pest control were introduced in detail in solar greenhouse.

本文根据东北地区气候特征及蝴蝶兰的生物学特性，详细介绍了当地日光温室栽培蝴蝶兰过程中各个不同时期的关键措施以及病虫害防治，对蝴蝶兰在东北地区的温室栽培具有一定的指导意义。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。