查询词典 necessary

More than 90% of the total incidence of typhoid and paratyphoid were typhoid previously, as the widely use of Vi bacterin, in the middle of 90s in 20th century, the popular strain changed, in some provinces the cases of typhoid decreased, but that of paratyphoid increased largely, with the outbreak trend from spot to part and from inshore provinces to backland provinces. In recent years, paratyphoid becomes the main infectious diease in some areas, and ofen develop to serious epidemic situation. So setting up a rapid and accurate detecting metod is necessary.

以前我国伤寒发病占伤寒副伤寒总发病的90%以上，后来由于伤寒Vi疫苗的广泛使用，20世纪90年代中期，流行菌株发生转变，我国部分省份伤寒病例逐渐下降，而由甲型副伤寒沙门氏菌引起的副伤寒病例却大幅上升，并呈现由散发到局部暴发，由沿海省份向内地省份推进的流行趋势，近几年来成为我国一些地区传染病突发事件的主要病种，常发展成重大疫情，急需建立快速、准确的诊断方法。

If it is necessary to look for one of the following characters, verbatim, in the message, put a backslash in front of it.

如果有必要在信件中去寻找下列字符中的一个，请逐字地在其之前放置一个反斜杠。

To take advantage of the text arrangement functionality in devices with a keyboard, the component provides the '''insertAscii''' method. When Canvas or GameCanvas is used, the keyPressed method provides the ascii code of the button pressed. For normal keypad phones this is the ascii of the number pressed, for qwerty devices it will be the value of the key pressed. The device changes automatically the character set if the shift or numbers key is pressed and so the ascii received is different and corresponds to the intended key. The backspace character is also received as an ascii code, so it is not necessary to call in explicit way the delete function.

要充分利用键盘在设备里的文字安排功能，这个部份提供'''insertAscii'''方法，当Canvas或GameCanvas使用时，keyPressed方法提供按钮按下的ascii码，对於正常键盘手机来说这是按下数字的ascii，对qwerty设备来说它会是按下键的值，假如shift或数值键被按下该设备会自动改变字元集，所以所收到的ascii是不同的并且对应於所要的键，倒退键字元也会以ascii码来收取，所以没有必要用明确的方式来呼叫删除的函式。

At other times,one may find it necessary to backtrack to a previous Step.

在另一些场合，可能有必要重复前一步骤。

At other times, one may find it necessary to backtrack to a precious step.

另一些场合，可能有必要重复前一步。

Huang and Lin proposed the weak solution concept for Backward Stochastic Differential Equation This paper based on the predecessor's work , gives the weak solution concept for Backward Stochastic Differential Equation with continuous martingale,uses the Girsanov transformation, obtains its weak solution of the existence of a necessary and sufficient conditions, and on this basis obtains its weak solution of the existence of sufficient conditions,these sufficient conditions weakened the drifting coefficient which requested in the existence uniqueness of strong solution to satisfy the Lipschitz condition the request.

本文在前人研究的基础上，给出由连续鞅驱动的倒向随机微分方程弱解的概念，利用Girsanov变换，得到其弱解存在的存在的一个充分必要条件，并在此基础上得到了其弱解存在的一些充分条件，这些充分条件减弱了在强解的存在唯一性中要求的漂移系数满足Lipschitz条件的要求。

It is very necessary to do research into the rule of backwater length fluctuating.

本文主要研究长洲枢纽建设后水库回水长度的变化规律。

So, I feel to be necessary to be made in the light of this kind of problem Baconian.

所以，我觉得有必要针对这类问题作一下归纳。

Furthermore, additional research on the value of time to positivity and quantity of growth for differentiating culture contamination from bacteremia is necessary.

另外，有必要进一步研究区分血培养污染菌的生长时间和数量。

The elderly type2diabetes were easy to combine with the infection of urinary system;Choosing drugs according to drug sensitivity results and treat the asymptomatic bacteriuria, are necessary to control the urinary infection.

老年2型糖尿病患者易合并泌尿系感染，根据药敏结果合理选药及针对无症状菌尿的治疗，是控制老年糖尿病合并泌尿系感染的必要手段。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。