栅

For its many merits, twin gridded ionization chamber is used in the studies of and reactions.

由于屏栅电离室的诸多特点，被用于快中子核反应截面、能谱及双微分截面的测量。

The SI source is an array of microhotplates fabricated by microelectromechanical systems process. Besides as an ionizer, this source acts as an ion grid which can be used to inject ions into the drift region of drift tube periodically.

表面离化源为采用微机电系统工艺加工的微热板阵列，除了作为离子产生器，还作为漂移管的一个离子栅，用以实现离子向漂移区的注入。

According to the arrange characteristic of irradiation source on the palling plate this paper deduces the equation calculating dose field The problem in calculating dose field of irradiator is solved with computer program The calculation values are in accordance with the measurement values .

自编程序解决了栅板源剂量场的计算问题，同时将计算值与实测值进行了比较，两者符合得很好。

The characteristics of charge storage in APCVD Si 3N 4/thermal\|grown SiO 2 double layers electret films, charged by coroma were investigated by measurements of isothermal surface potential decay and thermally stimulated discharge.

利用等温表面电位衰减及热刺激放电(thermallystimulateddischarge ，TSD)方法探讨了恒栅压电晕充电经常压化学气相沉积的Si基Si3N4 和热生长SiO2 双层薄膜驻极体电荷的存储特性。

The longest joist central spacing of other thickness needs to be determined through the experiments.

其它厚度的最大搁栅间距需要通过实验确定。

The transverse diaphragm is very similar in appearance to the conventional bar joist.

横梁很相似于通常的钢筋搁栅。

The increase of the horizontal displacement is less obviously than the total displacement. The geogrid provides effective lateral restraint to the sloping surface.

水平位移的增长幅度明显小于总位移，土工格栅加筋材料对坡面土体提供了有效的水平约束。

Especially for thorium fuel lattice, such design has negative coolant void reactivitythat decreases with burnup.

特别是对于钍铀燃料栅元，这种选择能够使冷却剂空泡反应性降到负值，并且在燃耗期间不断降低。

Directed against stress properties of lining structure of loess highway tunnel, the paper selects three loess highway tunnels as relying engineering according to buried depth and soil properties, and takes field observation synthetically for the first time, which pays more attention to researches on the change regulations of pressure acting on first lining and invert, axial force of lattice girder, contact stress between first and second lining, concrete strain of second lining verse the time and distributions in different positions.

针对黄土公路隧道衬砌结构受力特性，根据埋深和土质情况，选取三座黄土公路隧道为依托工程，首次开展了大规模系统的现场测试，着重研究了一衬和仰拱围岩压力、格栅拱钢筋轴力、一衬和二衬接触应力以及二衬混凝土应变时间变化规律及分布特性。

The observation results reveal the difference between surrounding rock pressures of shallow tunnel calculated by exiting methods and test results is large, pressure figure seems cat ear, surrounding rock pressure of deep tunnel belongs to clastic pressure, the test result is consistent with result by modified KAKE formula, the invert stress properties of shallow tunnel and deep tunnel are different, the axial force of lattice girder is at pressure in majority, and the stress of second lining is relatively small in loess highway tunnel.

实测结果表明：现有浅埋隧道围岩压力公式计算结果与实测结果偏差较大，其分布呈"猫耳朵"形状；深埋隧道围岩压力属形变压力，其实测值与修正卡柯公式计算结果较为一致；深埋与浅埋隧道中仰拱的受力性态有所不同；格栅拱钢筋轴力以受压为主；黄土公路隧道二次衬砌受力相对较小。

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％。