查询词典 active

In the experimental work, application of proportional controller to active vibration control incorporated with passive vibration isolator to suppress its resonant oscillation of natural frequency is studied in this project. Vibration acceleration acquired from accelerator is inputted to controller as feedback signal. The processed signal from controller is transmitted to voice coil actuator to control vibration. Firstly, based on the theoretical equations which govern the system vibration, the physical mechanism of active control in total system is studied.

在实验部分，则运用比例控制器进行被动式隔振系统自然频率共振抑制之主动控制实验，控制回馈讯号采用加速规量得之振动加速度值，经由控制器计算输出控制讯号驱动音圈致动器进行主动控制。

The percentage of peripheral blood CD4+CD25+T cells in patients with active disease was significantly lower compared to patients with nonactive disease（P.01）,and those were related to the disease active stage.

SLE患者外周血CD4+CD25+/CD4+值与SLEDAI、补体C3呈低度相关（r分别为-0.491、0.368，P.05），CD4+CD25+T细胞数量与SLEDAI呈负相关（r =-0.578，P.05）。③SLE并发肾病组外周血CD4+CD25+T细胞群比例及CD4+CD25+/CD4+值显著低于非肾病组(P.01；P.05)。

If multiple players would make choices and/or take actions at the same time, the active player makes any choices required, then the next player in turn order (usually the player seated to the active player's left) makes any choices required, followed by the remaining nonactive players in turn order. Then the actions happen simultaneously.

若多位玩家需要同时做决定和／或采取动作，则先由主动玩家作决定，再由非主动玩家作决定；之后这些动作同时发生。

Doping Cr into perfect TiO2 (110) surface can create the new active surface state different from that of oxygen defect surface ,AM and transition metals deposited TiO2 (110) surface. Its active surface state is the Cr 3d occupied state near EF and the value of band-gap drop from 3.13eV to 1.16eV, so photocatalysis reaction can perform in visual light area after doping Cr into perfect TiO2 (110) surface.

TiO_2(110)面掺杂Cr 可以产生不同于氧缺陷、碱金属及过渡金属负载的新表面态，其表面态为靠近E_F 的Cr3d 电子占据能带，带隙由原来的3.13ev 降至1.16eV，因此，掺Cr 后TiO_2 可在可见光区发生光催化作用。

The catalyst, palladium supported with chitosan condensated with salicylaldehyde, was studied in hydrogenation ofα-octene, nitrobenzene, 4-nitrophenol and m-dinitrobenzene, it was active and good selectivity forα-octene and nitrobenzene, when the activation time is 90 min, the catalyst showed the best hydrogenation active.

壳聚糖缩水杨醛负载不同比例PdCl_2的催化剂对α-辛烯、硝基苯、4-硝基酚和间二硝基苯的催化性能进行了研究，结果表明该催化剂活化90 min时加氢催化活性最好，对α-辛烯，硝基苯的催化选择性在催化5 h时达到了100%。

Base on the principle of the superposition of waves, active noise control and active vibration control is achieved by adaptively tuning a secondary source which produces an anti-noise of equal amplitude and opposite phase with primary source.

主动噪音控制及主动振动控制籍由适应性地调适第二控制点，使第二控制点产生与主要声源或振源大小相等、相位相反的干涉波，而得以实现噪音消除及振动抑制之目的。

Base on the principle of the superposition of waves, active noise control and active vibration control is achieved by adaptively tuning a secondary source which produces an anti-noise of equal amplitude and opposite phase with primary source. This thesis includes two parts of study which are shown as below.

主动噪音控制及主动振动控制籍由适应性地调适第二控制点，使第二控制点产生与主要声源或振源大小相等、相位相反的干涉波，而得以实现噪音消除及振动抑制之目的。

The control is optimal while the output of the active and semi-active force generators have the same signs.

针对无源主动悬挂的非线性问题，文章给出了一种参考控制律，在无源作用器与有源作用器的输出同相时，控制是最优的。

In the active stressed lap polishing technology, a special computer controled pilishing machine and a 450mm diameter active stressed lap have beeen developed, and in the experiment a paraboloidal mirror with F ratio 2 and diameter 910mm has been successfully polished.

主动抛光盘磨制技术研制了应用主动抛光盘的计算机控制的磨镜机，研制了一块直径450mm的主动抛光盘，并试验磨制了一块φ910毫米的F/2抛物面镜。

By analyzing the relationship between the deforming precision of Active Lap and corresponding force generated by moment actuators, a new structure of Active Lap for manufacturing a Φ1800mm, F/1.5 large paraboloidal mirror is obtained. Its progressed performance has been proved with 60 units micro-displacement sensor array.

通过分析能动磨盘的变形精度与对应的驱动器产生力大小的关系，优化设计出适用于Φ1.8m、F/1.5主镜加工的磨盘结构，改善的性能在60路光栅位移传感器阵列上得到验证，新结构磨盘已应用于Φ1.8m、F/1.5抛光面主镜的加工工程中。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了