查询词典 offhand position

In the process of laboratory study, oxycodone was prepared by oxidating thebaine at 6,14-position under oxydol, hydrodeoxidizing 7,8-position double bond and 14-position ether under palladium catalyst. Furthermore, N-methyl of oxycodone was isolated byα-chloro-ethyl chloroformate under anhydrous condition and protection of 14-position hydroxyl to obtain noroxycodone, which was further converted into methylnaltrexone by N-alkylation in presence of cyclopropyl bromomethane, then by isolating 3-position methyl of methylnaltrexone under boron tribromide, becoming hydrochloride to prepare target compound, natrexone hydrochloride.

实验室工艺方面，本文首先用双氧水氧化蒂巴因的6-位和14-位、在钯炭催化下加氢还原7-8位双键和14-位醚合成羟考酮，然后提出并优化了在无水和14-位保护的情况下，用氯甲酸-α-氯乙酯脱去羟考酮的N-位甲基合成去甲羟考酮，再用环丙甲基溴将去甲羟考酮的N-位烷基化合成甲基纳曲酮，最后采用三溴化硼脱去甲基纳曲酮的3-位甲基和成盐酸盐合成盐酸纳曲酮。

In the Xizhou dynasty to Xihan dynasty ,the physician's position was inferior than that of witch physician though they already had high social position. From the mid of Xihan dynasty to Tang dynasty, the physician's position is markedly went down and caused the negative influence to the development of medicine as Confucianism became the orthodox ideology of the feudal society. From Song dynasty to Yuan dynasty ,the dynasts paid high attention to medicine ,so the physician's social position was greatly upgraded ,which promoted the development of medicine . The position of physician in the Ming dynasty and Qing dynasty were unprecedentedly debased. It became a very negative factor to the development of medicine.

经过本课题研究认为：医生的职责在夏至西周时期是由巫医兼任的，巫医在当时有着极其显要的社会地位，并在一定程度上对医学的发展作出了相应的贡献；东周至西汉前期，随着医巫的分离，医生的社会地位较巫医有所下降，但仍有相当的地位，并且活动相对自由；西汉中期以后至唐五代，随着儒家思想成为封建社会的正统思想，这一时期医生地位明显下降，对医学的发展产生了消极的影响；宋金元统治者重视医学，医生社会地位大为提高，推动了此期医学的发展；明清时期医生社会地位空前下降，是这一时期医学发展的一个消极因素。

In the Xizhou dynasty to Xihan dynasty ,the physician"s position was inferior than that of witch physician though they already had high social position. From the mid of Xihan dynasty to Tang dynasty, the physician"s position is markedly went down and caused the negative influence to the development of medicine as Confucianism became the orthodox ideology of the feudal society. From Song dynasty to Yuan dynasty ,the dynasts paid high attention to medicine ,so the physicians social position was greatly upgraded ,which promoted the development of medicine . The position of physician in the Ming dynasty and Qing dynasty were unprecedentedly debased.

经过本课题研究认为：医生的职责在夏至西周时期是由巫医兼任的，巫医在当时有着极其显要的社会地位，并在一定程度上对医学的发展作出了相应的贡献；东周至西汉前期，随着医巫的分离，医生的社会地位较巫医有所下降，但仍有相当的地位，并且活动相对自由；西汉中期以后至唐五代，随着儒家思想成为封建社会的正统思想，这一时期医生地位明显下降，对医学的发展产生了消极的影响：宋金元统治者重视医学，医生社会地位大为提高，推动了此期医学的发展；明清时期医生社会地位空前下降，是这一时期医学发展的一个消极因素。

The equal distance 3-improved-coverage number of beacon sending position is presented according the acreage of ROI.Then a simple method is put forward to calculate the coordinates of the sending positions in rectangular ROI.Aiming at the shortage of the existent sequence algorithm,when beacon moves according to the path and emits RF signals at every position,the ant colony algorithm is applied to the position sequence so as to get the beacon sending position.Further,in this algorithm the sensors could work out their position with trilateration.

根据ROI面积给出了等距三重优化覆盖此ROI所需要的信标发射位置数量计算方法；随后对矩形ROI提出了一种简单的信标发射位置确定方法；针对现有的遍历发射位置点的路径遍历算法的不足，提出了一种新的应用蚁群算法的信标发射位置点的遍历算法，并利用该算法对基于三边测量方法进行传感器节点定位。

His ad-lib comments showed poor judgment; an extemporaneous piano recital; an extemporary lecture; an extempore skit; offhand excuses; trying to sound offhanded and reassuring; an off-the-cuff toast; a few unrehearsed comments.

他的即席评论显得缺乏判断力；临时的钢琴独奏会；即席演讲；即席幽默；临时借口；试图听起来即席又可靠；即席祝酒；一些临时评论。

You fritter and waste the hours in an offhand way.

你如此随意的消磨和浪费掉生命里的一分一秒 I，-hf

Do you know any good Kazakh codes offhand?

你知道随便什么哈萨克开门密码吗？

Small movies can be as daring as big ones, and Linklater, in his offhand way, is working without a net here.

小制作的电影有时也能像大片的制作一样大胆。林克莱特即兴导演的手法使他摆脱了所有束缚。

I don't like his offhand manner.

我不喜欢他那粗鲁的态度。

I can't tell you offhand.

我不能马上告诉你。

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。