查询词典 brood chamber

No tapetal cells were formed or tapetam collapsed at very early stage in some anther chamber during the microsporogenesis; Pollen mother cells in another chamber were not developed and microspore vacuolized; Tapetum cells developed abnormally, giantized and crammed the anther chamber; Some tapetum cells developed normally, but PMCs developed abnomally, which deformed at sporogeneous stage, and then were abhensive each other and finally degenerated. Nearly no PMCs could complete the process of meiosis, and form the tetrad, leading to the failure of normal microspore development.

药室的绒毡层细胞不形成或提前解体；药室内的花粉母细胞不发育或小孢子液泡化；绒毡层细胞发育异常，出现巨型化而挤满整个药室；绒毡层细胞虽发育正常，但花粉母细胞发育异常，在造孢细胞时期即开始出现变形现象，随后发生粘连退化；绝大部分花粉母细胞不能完成正常的减数分裂过程形成四分体，导致小孢子退化。

An air-breathing valveless PDE model was designed and manufactured,which was made up of subsonic inlet,mixing chamber,ignition chamber,detonation chamber and nozzle.

设计制造了完整的吸气式无阀脉冲爆震模型机，包括亚声速进气道，混合室，点火室，爆震室和喷管。

The results show that proper reentrant combustion chamber can effectively organize and control the flow distribution and intensity in the combustion chamber. There exists an optimized fuel injection position and intake swirl ratio for this kind of combustion chamber to decrease engine emission without scarifying engine power output and fuel economy.

结果表明，通过低排放缩口型燃烧室结构参数的优化，可有效地组织和控制燃烧室内气流分布规律及其强度，而且对于这种燃烧室结构存在着最佳的喷射位置和进气涡流强度，使得在动力性和经济性基本保持不变的条件下，可有效地改善柴油机的排放特性。

Rather than relying on the vacuum chamber alone, the Twin Chamber Blow Off Valve harnesses boost pressure in a second chamber to assist in opening the relief valve.

因而无论在突然增速和减速的情况下，双腔排气阀都有着良好的阀门效果，同时又不损失气流效应。

The assembly includes a housing having an inlet, an outlet, a dirty air chamber and a clean air chamber and a first filter construction positioned in the dirty air chamber.

该组件包括一个带有一入口、一出口、一含尘空气腔以及一洁净空气腔的壳体和一个位于含尘空气腔中的第一过滤器结构。

Disclosed are a drain device having a drain filter, which causes foreign substances contained in washing water to be effectively filtered out by a filter chamber to prevent the foreign substances from flowing into a pump chamber, and allows the washing water to smoothly flow in the filter chamber to use the drain filter for a long time, and a washing machine having the same.

本发明公开了一种具有排水过滤器的排水装置，该排水装置致使包含在洗涤水内的异物有效地通过过滤器室过滤掉，以防止异物流入泵室，并且允许洗涤水平滑地在过滤器室内流动，从而长时间的使用排水过滤器，以及一种具有该排水装置的洗衣机。

Sontek Company was established in 10, 1, 2000, then it got the patent of the detachable audio chamber and the technique of audio chamber especially for the music practice came to mature. As expected, the audio chamber of Sontek got the first place in a quality competition in Korea.

Sontek 公司于2000年1月10日创立，随后获得可拆装隔音室技术专利，在音乐练习隔音室技术日趋成熟，并在全国隔音室质量评比中获得一等奖。

A method and apparatus for increasing the propelling force of pulse engine features that the fuel nozzle of pulse explosion engine is arranged in combustion chamber to close jet tube exit, and the fuel is reversely sprayed out to generate a shock wave barrier near the jet tube for preventing the airflow from flowing out of the combustion chamber, resulting in raising the pressure in combustion chamber and in turn increasing the propelling force.

本发明公开了一种提高脉冲发动机推力的方法和装置，它是通过将脉冲爆轰发动机的燃料嘴置放在燃烧室中靠近喷管出口附近，并使燃料逆向喷出，在燃烧室内靠近喷管附近形成一道阻止气流流出燃烧室的激波，激波的作用是使燃烧室压力升高，从而的到较大的推力。同时由于本发明的结构特别的简单，所以实现非常容易，并且工作效果十分显著。

Septum bore of Transwell double-layer cell culture plate was 0.4 μm. In the co-culture group, osteoblasts were incubated in the upper chamber. In the control group, osteoblasts were not incubated in the upper chamber. Bone marrow mesenchymal stem cells were incubated on the pretreated coverslip in the lower chamber in both groups, for 20 days.

Transwell双层细胞培养板的隔膜孔径为0.4 μm，共培养组于培养上室接种成骨细胞，对照组培养上室未接种细胞，两组培养下室均于预处理的盖玻片上接种骨髓间充质干细胞，培养20 d。

In the design of fire water supply system in flight area of new Baiyun International Airport,explanation was given to the selection of pipe materials,anticorrosion of pipeline,and setting up of fire hydrant chamber,valve chamber,and water hydrant chamber,as well as the special treatment and notes for pipeline running through runway.

飞行区内的消防给水系统设计与一般的设计存在着很大差别，结合广州新白云国际机场飞行区的消防给水系统的设计，对消防给水管道材质的选择，管道防腐，消火栓井、阀门井、给水栓井的设置，以及管道穿越跑道时的特殊处理和注意事项进行了阐述。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？