查询词典 rare

The development of magnetic materials was extremely rapid during the 1990's,when magnetic alloys of the rare earth-3d iron group,such as rare earth permanent magnets,giant magnetostriction materials,giant magnetocaloric materials,magnetooptic materials,magnetic amorphous materials,and nanocrystalline magnetic materials,appeared one by one.

稀土-3d过渡族磁性合金材料，如稀土永磁、巨磁致收缩材料、巨磁热效应材料，磁光效应材料等，以及非晶，纳米微晶磁性材料相继问世。1988年巨磁电阻效应的发现已获广泛应用，如读出磁头、传感器以及磁随机存储器等，并发展成为自旋电子学的新学科。

Adopting the model of uniform load and triangular load separately,MRFs of different story numbers and bay numbers are analyzed by static Pushover analytical method,and the global capacity envelopes are obtained.Then,through a method for establishing the inelastic demand spectrum of design intensity and rare intensity based on elastic spectrum of seismic design code for buildings,the structural target displacement of design intensity and rare intensity are estimated by improved capacity spectrum method.The corresponding structural ductility reduction factor,the overstrength factor,the structural influencing coefficient and displacement amplification factor are determined.

分别采用水平均匀分布力和倒三角分布力加载模式对不同层数和跨数的钢框架结构进行了静力推覆分析，并得到了结构的能力曲线，在此基础上，应用改进的能力谱法，以规范反应谱为基础建立设防烈度和罕遇烈度下的弹塑性需求谱，确定出结构在设防烈度和罕遇烈度下的目标位移，进而求解出结构的延性折减系数、超强系数、结构影响系数和位移放大系数等参数；同时，分析了不同加载模式、层数和跨数等对各系数的影响。

The oxyhalide rare earth doped laser glass of the present invention comprises the substitution of fluorine for oxygen in glasses having the general molar batch composition of 50% SiO2, 25% CaO, 25% Al2O3 to improve the distribution of rare earth dopants in the glass.

本发明稀土元素掺杂的卤氧化物激光玻璃是用氟代替一般摩尔配料组成为50％、SiO 2 、25％CaO、25％Al 2 O 3 的玻璃中的氧，以改进玻璃中稀土掺杂剂的分布。

An oxidative halogenation process involving contacting a reactant hydrocarbon selected from methane, a halogenated C1 hydrocarbon, or a mixture thereof with a source of halogen and, preferably, a source of oxygen in the presence of a rare earth halide or rare earth oxyhalide catalyst, so as to form a halogenated C1 hydrocarbon having a greater number of halogen substituents as compared with the reactant hydrocarbon.

一种氧化卤化方法，包括使一种选自甲烷、卤代C1烃、或其混合物的反应剂烃与卤素源和优选的氧源，在稀土卤化物或稀土卤氧化物催化剂存在下，进行接触，从而形成一种卤代C1烃产物，它较所述反应剂烃具有更多数目的卤素取代基。

Separation of complexes of different pheophytins with the same rare earth ion was firstly accomplished by reversed-phase HPLC, but the attempt of separation of complexes of pheophytin with different rare earth ions was unsuccessful.

首次实现了对同一稀土不同叶绿素配体所形成的配合物之间的色谱分离，然而不同稀土同一叶绿素配体所形成的配合物之间的分离尝试未获得成功。

To improve the photoemissive sensitivity of nanoparticle composite photoemissive thin film and to fill the blank of rare earth application research in the field of photoemissive material, the rare earth elements are introduced into nanoparticle composite photoemissive thin film in the first time.

本文以纳米粒子复合光电发射薄膜需要进一步提高光电灵敏度为出发点，以稀土元素独特的性质及其应用研究在光电发射材料方面的空白点为切入点，首次将稀土元素引入到纳米粒子复合光电发射薄膜中，对现有的纳米粒子复合光电薄膜的光电发射性能进行改善和提高。

County is rich in mineral resources, with proven gold, silver, copper, coal, clay, more than 10 kinds of marble, etc.; there are antelope, zi , otters, giant salamander, deer, and other rare animals microphylla; have yew, iron Sequoia, Ginkgo, camphora, Acacia, Pinus and other rare species; have tabulaeformis, pine, larch, red wood tree species Betula, etc.; produce velvet, musk, Polyporus, five Faeces, gastrodin, bark, yellow more than 400 kinds of Chinese medicinal herbs such as ginger.

县境内有丰富的矿产资源，已探明的有金、银、铜、煤炭、陶土、大理石等10多种；有羚羊、獐子、水獭、大鲵、麝、锦鸡等珍稀动物；有红豆杉、铁杉、银杏、香樟、合欢、白皮松等珍稀树种；有油松、华山松、落叶松、红桦等用柴树种；出产鹿茸、麝香、猪苓、五灵脂、天麻、杜仲、黄姜等中药材400多种。

Eight complexes of light rare earths with dioctyldithiocarbamate,〓 xH〓O (RE=La-Tb, except for Pm) and Nine complexes of rare earths with 5-phenyl pyrazoline dithioformate, Na RE〓·xH〓O (RE=La-Dy, Y, except for Ce and Pm) have been synthesized in air and dry N〓atmosphere, respectively.

分别在空气和氮气保护条件下，合成出八种稀土与二正辛基二硫代氨基甲酸形成的配合物〓（RE=La-Tb，除Pm外）和九种稀土与5-苯基吡唑啉二硫代甲酸的固态配合物NaRE〓（La—Dy、Y、除Ce、Pm外）。

A solitary Peutz-Jeghers-type is rare, and hamartomatous polyp in the recta and more spindle melanocytes was very rare, not only the diagnosis but also reconstruction follow-up and prognosis are important.

发生于直肠的错构瘤性息肉少见，息肉伴大量黑色素细胞聚集更为罕见，病理诊断困难，所以病理医生要重视并加强对患者的随访，以检验诊断的准确性。

Pallas's is genuinely very rare and Styan's is "status uncertain", but probably is also a very rare but annual migrant.

小蝗莺真的是少见，而史氏蝗莺是&状况不明&，但可能也非常稀少，但是每年固定的候鸟。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。