查询词典 MS

After extraction and cleanup, the samples were detected by GC/MS. The LOQ and average recovery ratio were 5.6～18.2μg/kg and 67.7%～102.3% respectively, while RSD was less than 10.6%. The results show the QuEchERS method can be used for the determination of organophosphorus pesticide residues in vegetables.

其采用一种新的样品前处理方法，从蔬菜中提取净化残留农药（包括11种有机磷农药），运用GC/MS进行分析检测，根据有机磷农药种类差异，其最小检出限在5.6～18.2μg/kg之间，回收率在67.7％～105.3％之间，相对标准偏差不大于10.6％，实验表明本方法适用蔬菜中有机磷农药多残留分析。

"Still, we find ourselves with the neurologists going back and forth many, many times – is it SLE or MS?"

&然而，我们发现我们神经学者许多许多次对疾病的诊断犹豫不决——SLE抑或MS？&

Compare the obtained GC-MS spectra to known spectra or phthalate ester standards to allow qualitative identification of phthalate ester plasticisers or any other compounds.

对测得的GC-MS图谱与已知的图谱或邻苯二甲酸酯类的标准图谱进行比较，得到该邻苯二甲酸酯类增塑剂或其他化合物的定性确定。

Methods Using the MS medium as the basic medium, the explants shoot apexes and stem segments were cultured to differentiate the regenerations. The autotetraloid with genetic material doubled was achieved by treating shoot tips with colchicine of different concentrations for different long times.

方法以 MS培养基为基本培养基，培养外植体茎尖或茎段获得组培再生植株；用不同体积分数的秋水仙素对无菌苗茎尖进行不同时间的处理，诱导遗传物质加倍的同源四倍体。

MS medium supplemented with 0.005 mg/L TDZ and 0.005 mg/L IAA is the optimal condition for the leaf regenerations of these two Siberian elms.

两种白榆叶片再生的最适培养基均为MS+TDZ0.005 mg/L+IAA0.005 mg/L。

These findings demonstrate the clinical relevance of gray matter atrophy in MS, and underscore the need to understand its causes.

这些研究发现证实了在MS中灰质萎缩的临床关联性，并强调有必要了解其产生原因。

The electronic structures of cluster Fe8 with D6h symmetry and Fe15 with Oh sysmmetry have been studied by MS-X method..The results show that(1 the exchange splittings of the d-band and the magnetic moments of the Fe-atoms are different in the two clusters;(2)the change distribution in both clusters is not uniform,showing that the electrons are transferred from peripheral atoms to inner atoms,and the spin-directionof the electrons transferred is in accordance with the symmetric characteristics...

用MS-Xα方法研究了Fe8原子簇（具有D6h对称）和Fe15原子簇的电子结构，结果表明：（1）两种原子簇中的Fe原子磁矩及其d能带中的交换劈裂性质互不相同；（2）两类原子簇中的电荷分布不是均匀的，电荷倾向于从外围原子向内部原子上转移，并且被转移电子的自旋方向与原子簇的对称性质密切相关。

The measurement of ethyl carbamate content in grape wine by liquid-liquid extraction combined with GC/MS internal standard method had been developed.

建立了液/液萃取结合GC/MS内标法测定葡萄酒中氨基甲酸乙酯含量的方法。

Nigra during the experiment. Successfully established the transformation procedure Agrobacterium-mediated of Populus simonii×P nigra: cut vigorous leaves to 2-3 patches through the main vein after growing about 20 days, pre-culture time was 3~4days;centrifuge Agrobacterium when being developped to the logarithm growth timeOD_(600=0.5, then dilute Agrobacterium to the concentration of OD_(600)=0.3-0.4 with MS liquid culture medium or asepsis distilled water for infection;infection time was 6-15 minute;after being co-cultured 3 days, inoculate on the selecting medium to be filtrated in succession during inducing unsureness buds and rooting with Kanamycin(containing Kanamycin 40mg/L and Cefazolin Sodium 700mg/L).

成功摸索出农杆菌介导的小黑杨遗传转化体系：选取生长20d左右的健壮的小黑杨组培苗叶片，通过主叶脉剪2～3下，预培养3～4d；将培养至对数生长期的农杆菌OD_(600=0.5离心后用液体MS培养基或无菌蒸馏水稀释成OD_(600)=0.3～0.4浓度，进行浸染；侵染时间为6～15min；共培养3d后，转入到筛选培养基中进行诱导不定芽及生根阶段的卡那霉素连续筛选(含有40mg/L卡那霉素和700mg/L的头孢唑林钠)。

The right column illustrates the control flow for MS-DOS-based applications.

右边一栏说明基础MS-DOS应用的控制流程。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。