查询词典 central

Driven by the valve stem to close one to wind the rotatory central point while rotating,the spheroid to the third a bit more separately, relative valve central point at this moment,from the third orbit a bit one cam form partial another,enter valve flat make valve it keep sealing to shut off down wards .

由阀杆带动关闭件绕旋转中心点转动时，球体由另点移至第三点，此时相对阀门中心点，从另点的第三点轨迹为一凸轮状偏心，向下进入阀座使阀门关闭保持密封。

This user information such as the distance to the central office in the central air-conditioning system can be managed.

此用户到局端的距离等信息都可以在中央空调系统中得到管理。

With the interaction of central city and its periphery scennic spots, this article analysize and prove the interactions of market positioning, theme imagine, special structure , and product projection beteen central city and its periphery scennic spots through basic principles , support factors, discrepance tactics, and so on.

根据中心城市与周边旅游地的互动关系，结合城市居民出游市场的主要特征，文中还就规划定位的基本原则、支撑要素、差异化策略和互动关系等层次，对中心城市与其周边旅游地的市场定位、主题形象定位、空间结构及产品开发等问题进行了理论分析和实证研究。

The conclusion is that inductive electromotive force, gotten from sensor with the distribution regularities of weighting function, is proportional to the average flow velocity in pipe and is not relevant to the distribution of flow velocity when flow velocity is non-central symmetry with the central axis.

得出按权重函数分布规律的传感器，在流速非中心轴对称分布时，感应电势仅与平均流速呈正比，而与流速分布无关的结论，从而从原理上解决电磁流量计了高精度测量的问题。

The first conductivity base board comprises: a base material, a first projection, a second projection and a light spacer; the first projection and the second projection are installed on the base material with central line symmetry, the second projection is the image structure of the first projection relative to the central line.

第一导电基板包括一底材、一第一凸块、一第二凸块及一光间隔物，第一凸块及第二凸块以对称于一中心线的方式设置于底材之上，第二凸块为第一凸块对应于此中心线的镜射结构。

The results show that, when the computational error and its accumulation are eliminated effectively, the laminar flow in OFR with perfect-symmetric boundaries behaves in a pattern of central symmetry and circumferential uniformity while the turbulent flow field presents a centrally symmetric and circumferentially non-uniform structure with 8 transverse vortices arrayed circumferentially in a way of central symmetry, similar to Taylor vortices in Couette flow.

模拟结果表明在有效消除计算随机误差以及误差积累的情况下，几何边界理想对称OFR内的三维层流流场呈现出良好的中心对称性和周向均匀性，而湍流流场中心对称的同时呈现出周向非均匀结构－在圆周上生成8个中心对称排列的横向漩涡，其形态与Couette流中的泰勒涡类似。

At the central frequency of the reduced units 0.5(ωa/2πc), when the transmission band of photonic crystaln is completely inside the band gap of photonic crystalmm, both sharing the same central frequency as their symmetry centers, mirror symmetrical photonic quantum well is formed.

针对光子晶体mnm模型，选择适当的结构参数，通过传输矩阵法对其透射谱进行计算模拟发现，在归一化中心频率0.5(ωa/2πc)处，当光子晶体n的导带处于光子晶体mm的禁带中，且两者均以中心频率处为对称中心时，构成镜像对称的光子晶体量子阱结构。

Central China as the only non-stop to achieve Taiwan's cities of Wuhan this charter flight is expected to radiation Tai half central China.

作为华中惟一实现直飞台湾的城市，武汉的这条包机航线有望辐射至大半个华中地区。

Previous studies have revealed that the chemosensitive areas of the ventrolateral medullary surface participate in the central chemical regulation on respiration, but the exact location and the mechanism of the central chemoreception are still unknown.

延髓腹外侧表面的呼吸调节化学感受区参与中枢化学感受作用已有许多报道，但经电生理、神经解剖学等多方面的研究，至今尚未找到其化学感受的结构基础，因而其感受机制还不清楚。

Following the central bank and the Hong Kong Monetary Authority on matters relating to cross-border trade reached an agreement clearing the yuan, the central bank, the Ministry of Finance, the Ministry of Commerce, General Administration of Customs, State Administration of Taxation, China Banking Regulatory Commission and other six ministries and a joint announcement yesterday,"RMB clearing pilot cross-border trade management practices "(hereinafter referred to as" methods "), the RMB settlement of cross-border trade in many of the general direction of the pilot have been clear.

继央行与香港金融管理局就跨境贸易人民币结算事宜达成协议后，央行、财政部、商务部、海关总署、税务总局、银监会等六部委昨日联合公布《跨境贸易人民币结算试点管理办法》，跨境贸易人民币结算试点的诸多大方向都已得到明确。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。