查询词典 m.

The concentrations of zinc nitrate hexahydrate are 0.01 M, 0.025 M, 0.05 M, 0.1 M, 0.2 M, and 0.4 M, respectively.

硝酸锌六水合物的体积浓度分别为0.01M，0.025M，0.05M，0.1M，0.2M 和0.4 M。

An MHP based thermal vacuum sensor was designed in the supporting beams of 65 μm long and 21 μm wide, and the gas gap below micro hotplate of 0.5 μm. The micro sensor was fabricated successfully with surface micromachining technology.

设计了一种边长为93μm、四臂支撑的方形微热板结构的电阻真空传感器，支撑桥长65μm、宽21μm，微热板与衬底之间的气隙高度为0.5μm；采用表面微机械加工技术成功实现了该传感器的加工。

Both the infimum Vm of the Volume Vof M and the necessary and sufficient conditions of "V=Vm" are obtained under 2 cases of minimal M and pseudoumbilical M.

研究了复射影空间CP4中共形平坦的正曲率全实子流形M，分别在M极小与M 伪脐2种情况下，得到M的体积V的下确界Vm和达到下确界的充要条件。

If the infimum of sectional curvature R_c in M~n satisfies: then M~n must be totally geodesic in M~,T_c is the supremum of Ricci curvature and t_c is the infimum of Ricci curvature in M~

如果M~n的截面曲率下确界R_c满足：则M~n一定是全测地的其中T_c，t_c分别是M~(n+p上Ricci曲率上确界和下确界。

Equivalently, it can be raised as follows: for an A operator T, if M and N are two invariant subspaces of T satisfying N include M and dimN/M=∞, then does there exist another invariant subspace L such that N include L, and L include M ? It is rather difficult to study the invariant subspace problem of general diagonal operators.

研究表明它可以约化为对角算子的不变子空间的情形，具体地它有如下的等价提法：对于A算子算T，，如果M和N是T的两个不变子空间，满足且dimN/M=∞，那么是否存在T的另一个不变子空间L使得M包含于L，且L包含于N？

It is shown from the analysis results that the average retrogradation rate of the south coastline of the Laizhou Bay during 1958 to 2004 was 27 m/a,the average retreating rate of the 0 m isobath was in the range of 27 to 65 m/a,and the average cutting rate of beach face was 2.1 cm/a.

结果表明，1958-1984年，莱州湾南岸岸线平均侵蚀后退速率为27 m/a，0 m等深线后退速率为27~65 m/a，岸滩平均蚀低速率为2.1 cm/a.1984-2004年，莱州湾南岸岸线位置基本无变化，岸滩平均蚀低速率为1.04 cm/a，水深5 m以浅的区域表层沉积物变粗。

Diurnal peaks in Pn for three age shoots of jack pine and black spruce occurred in the early morning between 7∶00-8∶00 on sunny days. The maximal rates of Pn and gs were 7.5 μmol.m-2.s-1 and 0.11 mol.m-2.s-1 for 1-year-old shoots of jack pine and 6.1 μmol.m-2.s-1 and 0.11 mol.m-2.s-1 for 1-year-old shoots of blackspruce.

而短叶松和黑云杉3个不同年龄树枝的Pn和gs的高峰出现在早晨7∶00到8∶00，其值分别是短叶松一年龄树枝为7.5 μmol.m-2.s-1和0.11 mol.m-2.s-1，黑云杉一年龄树枝6.1 μmol.m-2.s-1和0.11 mol.

This invention relates to MIMO test method in a multi-user MIMO radio communication system including: estimating the channel matrixes of all users at the base station, computing an orthogonal projecting matrix M of the interference matrix of each user and transmitting M to each user periodically, receiving data sent by the base station at the user end and getting the orthogonal projecting matrix M from the received data, transforming the MIMO test of a desired user to the minimum value of a K-element secondary convex function, in which, K expresses the number of sending antennas and getting estimation of the test data by a ball test method.

一种多用户多输入多输出无线通信系统中的MIMO检测方法，包括步骤：在基站估计所有用户的信道矩阵；计算每个用户的干扰用户矩阵的正交投影矩阵M，并将每个用户的正交投影矩阵M定期发送给每个用户；在用户端接收基站发送的数据，并从接收的数据中得到正交投影矩阵M；利用正交投影矩阵M将期望用户的MIMO检测转化为K元二次凸函数的极小值，其中K表示对期望用户而言，发送天线的个数；利用球检测的方法，得到检测数据的估计。

This paper studied the plotting of the hazard zone of Wulong mine's rockburst. This paper used ANSYS program to set up model then put up stress analysis. Taking the 311 working face of Wulong coal mine as an example, the contours of vertical stresses in the roof and floor are obtained corresponding to the mining distances of 100 m ,200 m ,300 m and 400 m respectively.It is indicated that the magnitude of vertical stress is the important influencing factor of rockburst.

用ANSYS建立模型进行应力分析，通过模拟开采3311，3l1，213工作面得到了推采距离为100、200、300及400 m 时的顶底板y向应力等值线图，指出顶板y 向应力大小是判断冲击地压是否发生的重要因素，当开采l00 m 和400 m 时工作面迎头位置产生高应力集中区，极易发生冲击地压事故。

Effects of dry temperature and dry time on properties of heat cured sand and the relationship with binder composition are as follows:sands bonded by binders that are not modified have high strength when dry temperature is high and dry time is long,but their anti-wettability power is poor . Sands bonded by binders that are modified by B but not modified by M can be dried quickly and sand strength is high but anti-wettability power is also poor. Sands bonded by binders that are modified by M but not modified by B can also be dried quickly to obtain maximum strength,then the strength becomes lower when they are dried continually for more time. and sand strength is high but anti-wettability power is also poor. Sands bonded by binders that are modified by M as well as by B at the same time can be dried quickly to obtain maximum strength at low temperature and short time. But the anti-wettability of sand mold is best when they are dried at high temperature and long time.

烘干温度和烘干时间对热硬砂性能的影响及其与粘结剂改性的关系是：未经改性剂B和改性剂M改性的粘结剂砂，脱水速度较慢，烘干温度越高，时间越长，则硬化强度也越高，但未经改性的粘结剂热硬砂的抗吸湿性较差；经改性剂B而不经改性剂M改性的粘结剂热硬砂，烘干硬化速度较快，强度也高，但在高湿度下的抗吸湿性不好；经改性剂M改性而不经改性剂B改性的粘结剂热硬砂，烘干时强度先随烘干时间升高至最大值后，继续烘干时强度又出现下降；经改性剂B和经改性剂M共同改性的粘结剂热硬砂能在短时间和较低的烘干温度下就可烘干到最高强度，即烘干脱水的速度较快，但试样的抗吸湿性差，若在更高温度和更长时间下烘干，试样的抗吸湿性得到改善，综合考虑烘干强度和抗吸湿性要求，对于φ30×30mm试样，理想的烘干温度是200℃，烘干时间20分钟。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。