查询词典 downward ventilation

In this paper, an iterative approach to potential field continuation from curved surface to plane is proposed. The continuation of potential field data from a curved surface to a plane can be viewed as an inverse problem of upward continuation of plane potential field data, getting a linear integral equation. Through viewing the potential field data on the curved surface as the data on the average elevation plane of the curved surface, then using the wavenumber domain generalized inverse algorithm to downward continue the data from the average elevation plane to a given plane, and a topography correction based on the change of curved surface relative to its average elevation is implemented to the downward continued data on the given plane, finally the downward continued data plane is upward continued to the curved surface.

本文提出一种位场数据曲化平的迭代方法，即通过把位场数据曲化平视为平面位场数据向上延拓的反问题，得到曲化平的线性积分方程，再把曲面上位场数据视为曲面平均高程面上的位场数据，利用向下延拓的波数域广义逆算法把平均高程面上的位场数据向下延拓到设定平面上，再根据曲面和其平均高程面的相对起伏对设定平面上的向下延拓数据进行起伏校正，最后再把所得平面上的位场数据向上延拓得到曲面上的位场数据，并进行迭代。

Might as well right now the motion that makes wrist of make a long arm coming back more, raise the right hand in head west the front, on palmar face, thumb downward, little finger upgrade, make the artifice is tightened toward right underspin; In the meantime, left hand is gone to extend by left hip, finger is flagging, thumb upgrade, little finger downward, make the artifice is tightened toward right underspin; Next at the same time the right hand again as far as possible upgrade is extended, left hand is extended downward as far as possible, at the same time with Nose Slowly inspiratory, make acerbity hemp feels all round two tactics wrist, be adjusted.

此时不妨多做伸臂旋腕的动作，将右手举在头右前方，手掌朝上，大拇指往下，小指往上，使手腕往右下旋紧；同时，左手往左臀部旁伸，手指下垂，大拇指往上，小指往下，使手腕往右下旋紧；然后同时右手再尽量往上伸，左手尽量往下伸，同时以鼻子缓缓吸气，使两手腕周围感到酸麻，受到调整。

Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性，从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则，创造性地采取了解决冻土施工难题的相应对策：对于不良冻土现象发育地段、线路尽量绕避；对于高温极不稳定冻土区的高含冰量地质，采取"以桥代路"的办法；在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施，提高冻土路基的稳定性；在桥涵基坑、挡水埝基槽开挖中，创造性地应用了单齿破碎器，解决了冻土开挖难题；在桥涵工程施工中，采用了耐久性混凝土，采用了三步养生法，保证了结构物内实外美。

Excessive grinding or abrasion of this product may create airbome dust and fober concentrations in excess of state and Federal OSHA permissible exposure limits.if employee exposures exceed these PELs,local exhanst ventilation or other mechanical ventilation systems may be required to reduce such exposures to concentrations below the PELs.if mechanical exhaust ventilation is necessary,exhaust air should be appropriately filtered or otherwise controlled to meet local ,state and Federal air pollution and air quality laws and standards

磨削过度磨损或这种产品可能造成机载尘fober浓度超过州政府和联邦政府1921年允许暴露限定。如果雇员暴露超过这些研究生，局部排气通风或其他机械通风系统，可要求减少这种暴露浓度低于该PELs。如果机械排风是必要的，排风应适当过滤或以其他方式控制，以符合当地，州和联邦空气污染和空气质量法规和标准

The anti-bacteria effect of the soda lime can be influenced by the chemical response between soda lime and CO2, the bacteria in the patient airway may be polluting the ventilation system of the anesthesia machine, so the hospital cross-infection was present in this repeat use of soda lime and ventilation tube. The hospital infection can be effectively prevented by using the one time ventilation tube, the virus/bacteria filter utensil and/or rechange the soda lime in the general anesthesia.

钠石灰具有杀菌作用，全身麻醉钠石灰与CO2起化学反应会影响钠石灰的杀菌作用，连台手术气管插管全身麻醉病人气道细菌有污染麻醉机通气系统引起交叉感染的机会，使用一次性呼吸管道，并合理使用一次性病毒/细菌过滤器及时更换纳石灰可预防医院感染。

Methods:Normal frequency ventilation of high frequency jet respirometer was used to control breath continuously for 31 cases without autonomous breath,the ventilation frequency:16～20 times/min with continuous ventilation time 12～72 hours.

结果：通气1h后PaO2（15.92±2.50）kPa，PaCO2（5.90±0.76）kPa；通气24h后PaO2（14.76±3.21）kPa，PaCO2（6.11±0.84）kPa。在Ⅱ型呼吸衰竭，常频与高频通气交替应用比单用高频通气辅助呼吸，其提高血氧分压的疗效优越（P＜0.001），且可防止高碳酸血症。

More pathological ultramicroscopic changes are observed after 7-hour mechanical ventilation with pure oxygen, which reduces after mechanical ventilation with 34% oxygen. Oxygen concentration should be decreased while long-time mechanical ventilation is executed so as to reduce potential lung injury with oxygen toxicity.

纯氧通气7 h后观察到的肺超微结构损伤较多，吸入氧体积分数为0.34则相对较少，建议长时间气管插管通气时，宜降低吸入氧浓度，尽可能减少潜在的氧毒性肺损伤。

Bioclimatic architecture realizes low energy-consumption natural ventilation: the squama-curtain of TBA TOWER has opening window and special ventilation fan, realizing air ventilation across both sides of the mansion through pressure difference between windward side and leeward side, under the condition of no pressure difference, it can form chimney effect through vacant areas in the mansion, create negative pressure in the internal capsule, import air into device layer and discharge it, realizing the circulation of fresh air, not only saving energy and improving air quality in the room, but also bringing benefits to the health and mind of inhabitants.

生物气候建筑实现低能耗自然通风：TBA TOWER鱼鳞状外幕墙设计有开启扇及专有的通风器，通过建筑迎风面与背风面的压力差实现建筑两面的窗户空气流通；在没有两面压差的情况下，可通过建筑内的挑空区形成烟囱效应，在内囊造成负压，将空气引入设备层排出，实现新鲜空气的流通，既节能、又可改善室内空气品质，利于居者的身心健康

Compare the lung injury extent and the important physiological parameters to determine the optimal condition for rabbit ventilator induced lung injury, Choosing another 24 new Zealand rabbit, randomly divided into 4 groups:(1)conventional ventilation+PEEP group;(2)ventilator induced lung injury group: employ the experimental condition determined by the first part experiment;(3)VILI+HO-1 inducer hemin group:pre-treated with HO-1 inducer, the ventilation method is the same with VILI group;(4)VILI+HO-1 inhibitor Zn-PP group(Zn-PP group):pre-treated with HO-1 inhibitor, the ventilation condition is the same with VILI group.

第二部分24只家兔随机分为4组：(1)常规潮气量+PEEP组；(2)呼吸机所致肺损伤组：使用实验第一部分确定的最适条件；(3)呼吸机所致肺损伤+HO-1诱导剂干预组：预先给予氯铁血红素，通气条件同VILI组；(4)呼吸机所致肺损伤+HO-1阻断剂干预组：预先给予锌原卟啉，通气条件同VILI组。

Ventilation system: Model A use top bright gas window and sliding fittings-ventialtion lock to achieve cross ventilation.Model B: with sound insulating device, your good will will come true - close door, enjoy ventilation moment.

通风系统：A横式利用上亮气窗及提升配件独有的换气锁座来实现室内外换气。B模式可通过加消音通风器实现关着门换气的美好愿望。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。