查询词典 time exposure

The color composite image includes eight hours of exposure time with an H-alpha filter, transmiting only the light from recombining hydrogen atoms in the expanding nebulosity and tracing the regions of shocked, glowing gas.

合成图上的色彩用H的α滤光片曝光了8小时，只吸收那些来自于云气中氢原子与电子复合而发出的光，指引我们探寻那些令人惊叹的生机勃勃的受激气体。

Studies have shown that only about 2% of cats are shedding oocysts at any one time, and that oocyst shedding does not recur even after repeated exposure to the parasite.

研究表明，只有 2%的猫会排出一次胞囊，并且以后不再排出，即使猫体内仍有寄生虫。

BACKGROUND AND AIM: To study the changes of peroxisome proliferator-activated receptor γ expressions at different time points in rat lung after phosgene exposure and explore the role of PPAR-γ in this pathogenesis. MATERIALS AND METHODS: 60 male rats were randomly divided into 6 groups with 10 in each group.

背景与目的：研究大鼠经光气染毒后，不同时间点肺组织中过氧化物酶体增殖体激活受体γ的表达变化，以探讨PPAR-γ在光气致大鼠急性肺损伤中的作用。

Fumigation with phosphene needs a long exposure time.

磷化氢熏蒸一般需要较长的密闭时间。

Photolithographic technology of in-situ synthesis high density chip is also discussed in this thesis. The technology parameters of label are obtained, such as coating photoresists, exposure time, and so on.

本文还研究了原位合成高密度基因芯片的光刻工艺，确定适合制作原位合成高密度基因芯片标记化的最佳工艺参数。

Pictet, the wealth-management group, decided some time ago to take physical delivery of gold (rather than get exposure via the derivatives market), and has had to find extra space in its vaults.

资产管理集团Pictet，早先决定选择实物黄金（而不是在衍生品市场上获得差价收益），并且在其储存库中开辟了额外的空间。

The SOD activity decreased and MDA concentration increased significantly （P〈 0.05 ） with prolonged exposure and increased concentration of ponceau 4R, that was fitted with a time-dose-response relationship.

随着胭脂红染毒时间的延长和染毒浓度的增加，雌雄果蝇体内SOD活力明显下降、MDA含量明显升高（P〈0.05），呈剂量-反应关系。

For the different preload level (0, 15%, 25% or 30% of ultimate capacity), the capacity of specimens had no evident correlation with exposure time.

不同初始荷载等级(0、15％、25％或30％)，各组试件的界面剪切强度与试验周期的相关性并不明显。

The effect of bavachin and corylin, two active principles from Psoralea corylifolia L., on UMR106 cyclin E expression by Western blotting was examined. The result showed that the two flavonoid compounds had no significant effect on cyclin E expression after various exposure time.

对于中药补骨脂中分离的两个促成骨样细胞增殖的活性成分补骨脂二氢黄酮和补骨脂异黄酮，采用Western blotting的方法考察不同时间对UMR106细胞周期蛋白cyclin E的表达，结果它们对cyclinE的表达没有显著影响。

Theoretically, there are infinite arrangements of position and exposure time of the radioactive source for a given treatment.

理论上对一固定治疗方式射源位置及暴露时闻有无限多的排列方式。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐