查询词典 M-P

Let F be a bijection from set A to set B. Denote M={a Aa F}. If in a theory that ME B is legitimate, then the question m E M?

令F是从集合A到集合B的双射，记M＝aAaF，如果在某个理论中M B是合法的则问题m M？

By the use of the component sandstone electric conductivity model, the effect of the pore structure characteristic parameter to cementation exponent m and saturation exponent n in the Archie formula were studied. It can be found the cementation exponent m mainly reflects the pore space size and its sizes distribution. The m is bigger, the pore space is bigger, the throat is simpler, and the reservoir is better.

通过致密砂岩电导模型分析研究致密砂岩孔隙结构特征参数对Archie公式中的胶结指数m和饱和度指数n的影响，发现岩石胶结指数m主要是岩石孔隙空间大小及其大小分布的表征，m值越大的岩石其孔隙储集空间越大，孔喉越简单，储集性能越好；反之，m值越小，岩石储集性能越差。

The light saturate point and light compensate point of seedling were 1841.67nmol m-2s-1 and 155.18 mol m-2s-1 respectively, but the LSP and LCP of the young trees were 1810.00 m-2s-1 and307.07 mol m-2s-1.(3) Comparing with other three tree species, the tree of heaven had special leaf POD isozyme patterns related with the characteristic of insect-resistance.

幼苗、幼树叶片的净光合速率日变化具有两种变化曲线，均出现&午休&现象：幼苗的光饱和点与光补偿点分另伪1841.67μmol·m~(-2)·s~(-1)和155.18μmol·m~(-2)·s~(-1)；幼树的LSP与LCP分别为1810.00μmol·m~(-2)·s~(-1)与307.07μmol·m~(-2)·s~(-1)。

The calculation result shows that it is better to select the waveband of 0.5μm～0.9μm than that of 0.5μm～0.8μm considering entrance-pupil radiation intensity and SNR of the remote sensor.

计算结果表明：遥感器光谱波段选择0.5μm～0.9μm波段，在入瞳辐射亮度和信噪比等方面优于选择0.5μm～0.8μm波段。

The mainly conclusions in our research are as flowing: tungsten trioxide powders with 100 nm primary particle are obtained by spray drying,calcination and wet milling process, and an average size of quadric particle composed of agglomerated particles is 0.64 μm; tungtsen powders with 39 nm grain size and 60 -100 nm primary particle are produced directly from previous tungsten trioxide using one step reduction in hydrogen at 700℃, and an average size of quadric particle of tungsten powder is 2.91 μm; tungsten trioxide and copper tungstate compound powders with 100 nm - 200 nm primary particle are produced using ammonia metatungsten and copper nitrate as raw materials by spray drying,calcination and wet milling process;the compound powders are transformed completely into tungsten and copper compound powders by reduction in hydrogen at 700℃,in which tungsten grain size is 59 nm and copper grain size is 51 nm; primary particle size of compound powders is 80 - 120 nm,and an average size of agglomerated quadric particle is 1.86 μm; tungsten nitride powders with 35 nm grain size are prepared from tungsten trioxide powders by nitrogen treatment thoroughly in pure ammonia at 650℃, and an average size of agglomerated quadric particle is 0.64 μm in normal temperature.

研究结果表明：采用喷雾干燥—焙烧—球磨工艺可以制备出粒度约为100nm的WO_3粉体，它们在团聚后形成的二次颗粒平均粒度为0.64μm；采用一步直接氢还原方法可在700℃下从上述WO_3粉体制备出晶粒尺寸为39nm的、一次颗粒粒度为60-100nm的W粉体，其二次颗粒的平均粒度为2.91μm；以偏钨酸铵、硝酸铜为原料，采用喷雾干燥—焙烧—球磨工艺可制备出一次粒度为100-200nm的WO_3和CuWO_4混合粉体；采用氢还原工艺可在700℃下将这种粉体完全转变为W、Cu复合粉体，其中W的平均晶粒粒尺寸为59nm，Cu的平均晶粒尺寸为51nm；复合粉体的一次颗粒尺寸为80-120nm，在常温下团聚后形成的二次平均粒度为1.86μm；采用纯氨氮化工艺可以在650℃下由WO_3粉体制得WN，其晶粒尺度为35nm，在常温下团聚后的二次平均粒度为6.4μm。

The quantities of the four populations propagule are 548±28/m〓, 102±12/m〓, 457± 34/m〓, and 449±34/m〓 respectively.

四种禾草种群当年产生的营养繁殖体的平均数量依次为羊草548±28个/m〓、冰草102±12个/m〓、大针茅457±34个/m〓、克氏针茅449±34个/m〓。

After addition of surface active agent into sprinkling solution, for particle of 1 μm size, the filtration rate has increased from 40% to 70% approximately under the condition of head wind velocity of 1.5 m/s and spr4nkling density of 2.36 kg/(m^2s), and the filtration rate has increased from 30% to 60% approximately under the condition of head wind velocity of 2.8 m/s and sprinkling density of 2.36 kg/(m^2s).

在喷淋溶液中添加表面活性剂后，对于粒径为1 μm的尘粒，在迎面风速为1.5 m/s、淋水密度为2.36 kg/的条件下，过滤效率由40%左右上升至70%左右。在迎面风速为2.8 m/s、淋水密度为2.36 kg/条件下，过滤效率由30%左右上升至60%左右。

Bone strength, determined using quantitative ultrasound measurement of bone speed of sound at the middle left tibial shaft, decreased significantly in the control group from 2,892 30 m/sec at baseline to 2,799 26 m/sec at four weeks. However, bone SOS of the exercise group remained stable (2,825 32 m/sec at baseline and 2,827 26 m/sec at four weeks). Despite improvement in bone SOS with exercise, there were no accompanying changes in markers of bone formation and resorption.

研究使用超音波测量骨骼声波速度来数量化评估骨骼强度，测量的位置是婴儿的中间左侧胫骨干，研究显示，对照组的婴儿显著减少了骨骼强度，从基线2，892 ± 30 m/sec降到四周时的2，799 ± 26 m/sec，但是锻炼组的骨骼SOS维持稳定(基线：2，825 ± 32 m/sec，四周：2，827 ± 26 m/sec)，虽然锻炼可以改善骨骼SOS，但是骨骼形成和再吸收指标并没有跟著改变。

Through a comparative study of ~(99)Tc~m-DTPA and ~(99)Tc~m-OCT SPECT orbital imaging,evaluated the clinic significance of two imaging in estimating activity of TAO.The aim of this study was to develop a new method:simple,rapid and costefficient method for staging patients with TAO.

本研究采用~(99)Tc~m-二亚乙基三胺五乙酸~(99Tc~m-diethylene tri-aminepentaacetic acid，~(99)Tc~m-DTPA进行眼眶显像并与~(99)Tc~m-奥曲肽~(99Tc~m-octreotide，~(99)Tc~m-OCT眼眶显像进行比较，研究其在反映TAO患者眶周炎性程度的价值，旨在探索一种新眼眶显像方法：既经济又迅速，显像效果稳定又可靠。

Based on Pierre Becker's viewpoint of optimum m(active SiO2)/m=0.53, and combined with the production of 28% P2O5 phosphoric acid with Yunnan and Anning phosphate rock in the plant, the conclusion that the range of optimum m(active SiO2)/m covers 0.53～0.63 is drawn .

分析磷矿中不溶性SiO2和可溶性SiO2(即活性SiO2)对磷酸，磷铵生产的影响，根据皮埃尔贝凯提出磷矿中m(活性SiO2)/m=0.53较为合适的观点，结合该厂使用云南矿，安宁矿生产28% P2O5稀磷酸时，SiO2的分配情况，计算出m(活性SiO2)/m的范围是0.53～0.63。

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。