查询词典 tandem

A tandem bicycle .

双人自行车。

Another good point of the tandem rotors is that no tail rotor is needed to counter the torque so that the power efficiency is excellent.

纵列双旋翼的另外一个好处是不象其他直升机那样需要一个尾桨来平衡旋翼的扭矩，动力效率高。

This is a sky diving company that offers various services such as tandem and accelerated freefall jump...

这是一个天空的潜水公司，提供各种服务，如串联和加速自由落体跳。。。

The Joysticks support horizontal, vertical, and tandem contact drive arrangements.

操纵杆支持水平，垂直和串联的传动系统。

The laboratory is also home to the Intense Pulsed Neutron Source, the Argonne Tandem Linear Accelerator System and other facilities.

该实验室还拥有激烈的脉冲中子源，阿贡串列直线加速器系统和其他设施。

Body Phi Long Hair, the first in tandem with a dual angle, respectively, in the nasal and frontal bone on the length.

哺乳纲真兽亚纲奇蹄目的一种。体披长毛，头具前后排列的双角，分别长在鼻骨与额骨上。

Similarly, HMPA has theability to markedly affect the stereoselectivity of the tandem reaction.β-Aminoketones can be generated with high stereoselectivity (the ratio of trans-anti andtrans-syn is up to 94/6) when 4 equiv. of HMPA was used as the additive in THF.

其次，我们以二乙基锌来引发串联反应，发现HMPA对反应的选择性同样产生显著的影响，并通过在反应体系中加入4当量的HMPA，高立体选择性地得到了β-氨基酮类化合物(trans-anti／trans-syn一般为94／6)。

Methods Streptomycin and dihydrostreptomycin were extracted from honey samples using a liquid extraction with a phosphate buffer followed by a solid-phase extraction based on weak cation-exchange columns. After sample preparation, the hydrophilic interaction chromatography was used to retain streptomycin and dihydrostreptomycin on the column for the separation of the analytes from endogenous compounds. The aminoglycosides were detected and quantified with electrospray ionization tandem mass spectrometry.

方法用磷酸盐缓冲溶液提取蜂蜜中的链霉素和双氢链霉素后，经弱阳离子交换柱进行固相萃取，样品制备后采用亲水作用色谱，使链霉素和双氢链霉素实现保留，从而与内源性物质达到分离，采用电喷雾离子化串联质谱法检测和定量。

Oxytetracycline,tetracyclines and chlortetracycline in the chicken muscle were extracted,and then solid-phase cleaned-up on a C_(18) reversed-phase column to obtain an extract suitable for analysis by liquid chromatography-tandem mass spectrometry.

建立了一种专属、灵敏的方法，用于同时检测鸡肌肉组织中土霉素、四环素和金霉素的残留。

In either case, Mrs Merkel's CDU/FDP tandem would lose its majority in the Bundesrat, the upper house.

另外，默克尔的基民盟/民主党联盟将会失去其在旧德意志联邦议会---上议会的大部分席位。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。