封闭箱

采用分隔式封闭箱法，测定盆栽大豆植株氧化亚氮（N2O）通量以及光照度、光合速率和气孔导度的日变化。

Using the separate closed chamber method , the experiment determined the diurnal change of N2O flux from potted soybean plants . The experiment also measured the diurnal changes of photosynthesis rate and stomatal conductance of the potted plants and light density .

提出了挖掘机动臂重量及重心位置的新的计算方法，结果精确可靠，该方法也适合于计算其它复杂的空间封闭箱型结构的有关机械力学特征。

A new method of calculating the weight and center of gravity of boom of excavator is put forward , which has accurate and reliable result .

采用封闭式箱法，在田间自然状况下对大豆植株N2O通量进行了测定.结果表明，在主要生育期内，大豆植株N2O通量有2个释放高峰，分别位于苗期和开花结荚期。

The N 2O flux from soybean plant measured by closed chamber method under field condition shows that there exist two peaks of N 2O emission at soybean ′ s seedling and flowering stages , respectively .

功率封闭齿轮箱试验台加载机构的选择

Select ion of Different Loading Mechanisms for Four-Square Power Cycling Gear-Box Test Stand

介绍了功率封闭齿轮箱试验台的各种加载机构。

The different loading sete for four-square power cycling gear-box test stand are described in this paper .

从妊娠d9起，吸烟组孕大鼠在特制的半封闭动物饲养箱中熏烟，每日3次（8：00am，12：00am，4：00pm），每次持续15~20min。

From gestational day ( GD ) 9 , at 8:00 am , 12:00 am and 4:00 pm , pregnant rats of tobacco group were subjected to cigarette smoking in a special semi-blocked chamber for 20 min.

其独特的胶囊设计，表现得像一个封闭的空气箱，泡沫分离的位置过滤器。

Its unique capsule design , acting like an enclosed air box , isolates the placement of the foam filter .

手烧锅炉烟气被风机牵引，进入封闭的水浴箱处理，其除尘效率达81%。

Dust is drawn by induced draft fan form manual boiler and enters sealed water bath case . The dust collection efficiency is 81 % .

论述了风电机组和风电齿轮箱的基本结构及电功率封闭式的齿轮箱试验台在风电齿轮箱试验台中的应用。

The basic structures of wind turbine , wind turbine main gearbox and the test bench are reviewed .

耐用半封闭式尾桨变速箱保护尾桨齿轮同时也可以很容易地查阅。

The durable semi-enclosed tail rotor gearbox protects the tail rotor gears while at the same time allowing easy inspection .