查询词典 hf

Pitch circle diameter: d = mz = 3X12 = 36 Tooth crown heights: ha = m (f0 + x)= 3X (l +0.5)= 4.5 Tooth High: hf = m (f0 + cx)= 3X (l +0.25-0.5)= 2.25 Tooth full height: h = ha + hf = 4.5 +2.25 = 6.75 Addendum circle Chemical pumps diameter: Da = d +2 ha = 36 +2 X4.5 = 45 Fixed string tooth thickness: Sxn = m (π/ 2 * cos2a + xsin2a)= 3X (1.387 +0.6428 X0.5)= 5.125 Fixed string of high gear tooth thickness measurement: hxn = m (π/ 8 * sin2a + xsin2a)= 3X (0.7476X0.117X0.5)= 2.42 Modulus coefficient x0.5 m3 O20 ° pressure angle tooth thickness Sxn5.12 fixed string Addendum Coefficient string f1 fixed gear tooth thickness measurement most high hxn2.42 Teeth z12 2, shaft wear and tear maintenance: Axis gear pump wear is mainly because with the support roller shaft at both ends between the friction and wear, so that smaller shaft diameter.

分度圆直径：d=mz=3X12=36 齿顶高：ha=m（f0+x）=3X（l+0.5）=4.5 齿根高：hf=m（f0+c-x）=3X（l+0.25-0.5）=2.25 齿全高：h=ha+hf=4.5+2.25=6.75 齿顶圆直径：Da=d+2ha=36+2X4.5=45 固定弦齿厚：Sxn=m（π/2*cos2a+xsin2a）=3X（1.387+0.6428X0.5）=5.125 固定弦齿厚测量用齿高：hxn=m（π/8*sin2a+xsin2a）=3X（0.7476X0.117X0.5）=2.42 模数m3变位系数x0.5 齿形角o20°固定弦齿厚Sxn5.12 齿顶高系数f1固定弦齿厚测最齿高hxn2.42 齿数z12 2、轴的磨损维修：齿轮泵中轴的磨损主要是因为轴两端与支撑滚针间的摩擦磨损，使轴径变小。

Using much cheaper Chlorine as fuel, nearly 10 Watt 3.8 micrometer HCl laser was realized by H+Cl2 and H+ClF pump reactions without changing structure of discharge driven HF/DF laser. 12 Watt HF-HCl dual-band lasing were obtained using F-ClF-H2 chain reaction pump system.

以廉价的Cl2为燃料，在不改造电激励HF/DF激光器结构的基础上，分别利用H+Cl2泵浦反应和H+ClF泵浦反应实现了近10W的中心波长3.8μm HCl激光，并利用F-ClF-H2链反应泵浦体系获得了12W的HF-HCl双波段激光。

Well-documented Lu-Hf isotope data from the oceanic basalts show that,the starting area of magma melting for the MORBs derived from the DMM component would be in the the depth of garnet peridotite,i.e.at the depth of 80―90 km instead of less than 60 km,which is at the depth of spinel peridotite as proposed early.The HIMU component,which is characterized by its high rediogenic lead,is refered as a special mantle component differentiated at some time in geological history from the lower mantle.A correlation study of Hf-Nd isotope between the chondrite and oceanic basalts implies that no isolated primitive mantle might have remained.

大量的大洋玄武岩Lu-Hf同位素研究表明：具亏损地幔端元来源的洋中脊玄武岩岩浆部分熔融的初熔区位于石榴石稳定场深度，即深度为80-90 km的石榴石二辉橄榄岩地幔，而不是原来所认为的尖晶石二辉橄榄岩区(深度小于60 km)；以高放射成因Pb为特征的高U地幔端元应代表了下地幔物质在某一特定时期发生分异作用的结果；球粒陨石与大洋玄武岩Hf同位素对比研究表明，没有原始地幔物质能保留至今的迹象。

The F layer is of most importance for HF communications as it is present during day and night, it is located at the greatest height, and it reflects the highest frequencies in the HF band.

F 层数是多数重要为HF 通信照原样存在在日夜期间，它位于在最了不起的高度，并且它反射最高的频率在HF 带。

Absorption of HF may cause hypocalcemia due to HF's fixation of blood calcium .

HF的吸收会由于HF对血钙固定导致低血钙症。

Absorption of HF may cause hypocalcemia due to HF's fixation of

HF的吸收会由于HF对血钙固定导致低血钙症。

The lateralization of TLE was defined by the absolute volumetry value of HF and the normal range of the deviation of bilateral HF volume.

采用正常人HF体积的正常范围及左右两侧HF体积的差值的正常范围对TLE患者可能存在的海马硬化进行定位定侧。

It was more appropriate to define the posterior commissure as the posterior margin of HF volumetry, the determination of volume range of HF was helpful in lateralization of temporal lobe epilepsy. 3D MPRAGE was superior to SE in the volumetry of HF.

后连合作为HF体积测定后界较合适，HF正常值的制订有利于颞叶癫痫的定侧。3D MPRAGE序列较SE序列用于HF体积测定更为优越。

The HF activities in the detail engineering phase are defined as: 'Give input and advice to other departments as required, to ensure that all HF criteria are met… Document implementation of HF by updating HF data sheets prepared in pre-engineering.

HF 活动在细节工程时期中被定义当做： '当做需要把输入和忠告给其他的部门，确定所有的 HF 标准被藉由更新被准备的 HF 数据说明符合 HF 的…文件落实在前。

It is concluded that the ~(176)Hf/~(177)Hf ratios of 91500, Temora and We-1 were homogeneous, because the aforementioned Hf isotopic results consist of at least seven separated performances of aliquots for each zircon sample. These results have significant implications for zircon Hf isotopic determination by using LA-MC-ICPMS.

上述每个结果包括至少7组独立的锆石样晶的溶解、分离和测定，表明标准样91500、Temora和We-1是Hf同位素组成均一的，可作为LAM-MC-ICPMS(激光剥蚀多接受器电感耦合等离子体质谱)的原位微区锆石~(176)Hf／~(177)Hf比值分析过程中外部校正及监控标准样。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。