查询词典 M-B

Some properties of the pseudo umbilical surface M in R 4 are discussed and thus the lower for the tolal mean curvature of M is estimated.

本文研究了伪脐曲面M的一些性质，基于它并利用M的Gauss映射，给出了M作为R4中平坦环面的一个充分条件。

In Taiwanese the negator m seems to have more than one denotation, volitional and simple. The question is whether there are two different m's or just one m.

台湾话的否定词m有意愿否定及简单否定两种语意，本文所要探讨的问题便是：台湾话究竟有一个或两个不同的否定词m。

The lifetime of M intermediate of BRE194Q was less than 1.0 s by photomicrography. The lifetime of M intermediates of BRI119T/T121S/A126T and BRI119T/T121S/A126T/E194Q were 3.0 s and 2.0 s, respectively.

显微视频录像技术记录的PVA膜中样品的M态寿命表明，野生型BR的M态寿命最短，单突变体的M态寿命小于1.0 s，三突变体的寿命为3.0 s，四突变体的寿命为2.0 s。

The lifetime of M intermediate of BR(subscript E194Q) was less than 1.0 s by photomicrography. The lifetime of M intermediates of BR(subscript I119T/T121S/A126T) and BR(subscript I191T/T121S/A126T/E194Q) were 3.0s and 2.0s, respectively.

显微视频录像技术记录的PVA膜中样品的M态寿命表明，野生型BR的M态寿命最短，单突变体的M态寿命小于1.0s，三突变体的寿命为3.0s，四突变体的寿命为2.0s。

The latest experimental results of the focusing perfermance of the compound high-energy X-ray lens is designed with PMMA with the parameters of 40 plano-concave elementary lenses positioned in line with axial symmetry, 200 μm radius of the concave surface, 0.15 nm working wavelength, 0.5 mm geometrical aperture and 8 mm length of the compound lens and 1.3 m focus length, are briefly introduced.

报道了这种新型X射线光学元件聚焦性能的最新实验结果。设计的高能X射线组合透镜为聚甲基丙烯酸甲酯材料，包括40个相同的、顺序排布的平凹折射单元，折射单元的球面半径为200 μm，组合透镜的几何口径约为500 μm，长度约为8 mm，焦距约为1.3 m。简要描述了PMMA材料X射线组合透镜的制作技术和制作过程。并给出了X射线组合透镜聚焦性能测试实验系统和实验条件。

The test items included body weight, cirumference, standing long jump, chin up, 100 m dash and 3 000 m jogging, all were evaluated acc...

新兵组引体向上、10 0 m跑和 30 0 0 m跑诸项目显著低于国家军用标准(P 。0 1)，且在引体向上和 30 0 0 m跑 2项目上显著低于老兵组(P 。0 5或 P 。0 1)。。。。

A swashing dust catcher is used in the powder dust pollution in a-616 m underground crushing station of a copper mine in Anhui Province and the powder dust concentration at the working positions is reduced from 50 mg/m~3～60 mg/m~3 in the past to about 2 mg/m~3 at present.

采用1台冲激式除尘器对安徽某铜矿井下-616 m破碎站粉尘污染进行治理，作业岗位的粉尘浓度由原来的50 mg/m3~60 mg/m3，降至2 mg/m3左右，不仅使作业岗位的粉尘浓度基本达到了国家卫生标准，而且还净化了井下进风风质，改善了井下整体作业面空气环境。

The stability of the ternary complexes in relation to their binary parent complexes is characterized by the equilibrium constant (△logK〓=logK〓-logK〓) corresponding to the equilibrium M (ATP 〓+ML〓=M L〓+M〓.

三元混配配合物相对于二元配合物的稳定性用相应于平衡ML〓+M〓=ML〓+M〓的平衡常数△logK〓=logK〓-logK〓表示。

To improve traffic capacity of tollgates of a highway, according to the traffic flow characteristics, a tollgate model of standing in line has been set up and optimized, which describes the most suitable number m of the tollgates in the model and the optimal service capacity for each tollgate.

为提高高速公路收费站的通行能力，针对收费站交通流的特性，用运筹理论优化了现有排队模型，给出了M/M/m系统中收费通道的最佳个数m的求法及每一个服务通道最佳服务率的计算方法。

The parasitic rates of 10 of the 76 isolates were over 50%. As for Paecilomyces lilacinus, Verticillium chlamydosporium and V.lamellicola, the parasitism to eggs had no obvious difference among M.incognita, M. arenaria and M.javanica, which indicated that these 3 fungal species may be effective agents for control of root-knot nematodes.

通过测定，76个菌株中有10个菌株对南方根结线虫卵的寄生率超过50%，种间及菌株间对卵的寄生能力存在很大差异；Paecilomyces lilacinus， Verticillium chlamydosporium及V.lamellicola对Meloidogyne incognita， M.arenaria和M.javanica卵的寄生能力进行比较，在3种线虫之间没有明显差异，说明这3种真菌对这3种根结线虫有进行防治的可能性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。