查询词典 C.F.

Temperatures at its surface change dramatically, ranging from a high that can exceed 800 °F (425 °C) on the sunward side to a low of about -290 °F (-180 °C) at the end of its night.

地表温度变化很大，面对太阳的地方温度高达402℃，而夜晚温度则只有-173℃。

3M recommends filtering facepiece respirators be stored in their original packaging within climatic conditions ranging from -4°F (-20°C) to +86°F (+30°C)and not exceeding 80% RH..

使用之前务必对呼吸器进行检查，并按照使用说明进行佩戴气密性检查。

The yield of 〓-methoxyl or m-nitrocinnamic acids obtained from methoxycarbonylmethylenephosphonates and corresponding substituted benzaldehydes in the presence of is 11% or 13% higher than that obtained from those reactions without catalyst.

〓 [注：表中ρ、〓和C为式（2-5）中的相应系数和常数；γ为相关系数，F为F比值，〓为相应系数ρ、〓和C的偏差，〓和〓为相应系数的T检验，CL为置信水平，n为相关点数。表听数据系使用BJORK'S（1967）程序于Z-80计算机上计算结果。]

Hostile environments. Withstands continuous exposure to 500℉(260℃), up to 2000

套管可连续暴露于500°F (260°C)的高温中而不受损坏，高达2000°F (1090°C)的温度下可承

The orthogonal experiment for carbonization process indicated that the heating rate and the final carbonization temperature showed more significant influence on the properties of aerogels than the holding time did.

采用IR分析技术跟踪C〓F气凝胶的热解过程，发现400～600℃之间样品中出现石墨化结构的红外活性振动，表明炭气凝胶的微结构中开始有乱层石墨化微晶出现。C〓F气凝胶是典型的中孔材料。

The purpose of the plastic bag is to maintain very high humidity and to keep out fungus gnats. Fungus gnat larvae will eat the seedlings. A temperature between 20°C to 25°C (70°F to 80°F) works best.

使用夹鍊袋的目的是可以保持高湿度，并且防止蕈蚊(Fungus Gnats，长在潮湿的土壤中)，蕈蚊会吃幼苗。

At first, the rought C〓F〓 mixed gases are obtained by pyrolysis process of R22. A experimental pyrolysis device is designed and made by ourself. The optimum operating conditions are offered in the paper. Secondly, the much efforts is on the synthesis of R134. After through the discussion of basic thermodynamics and kinetics, selecting and preparating catalyst, it is possible that the synthesis of R134 by pyrolyzed gases hydrogenation. Base on the character of catalytic process, the kinetics equation about C〓F〓 catalytic hydrogenation is established. The rate constant of the reaction is obtained through experiment data regression. In order to achieve higher yield of R134, some optimum technological conditions is determined.

论文首先对R22裂解制成四氟乙烯混合原料气的裂解过程进行了讨论，自行设计和制作裂解反应装置，并确定裂解反应的最佳操作条件；然后，重点对R134的合成进行基础研究，分别从热力学和动力学的角度探讨以含四氟乙烯的R22裂解混合气为原料合成R134这一全新工艺的可能性，选择和制备加氢催化剂，根据催化过程特点建立四氟乙烯催化加氢反应的总包动力学方程，并在此基础上自行设计和制作中试合成装置，获得了以裂解混合气为原料合成R134的最佳工艺条件，为R134的工业化生产提供了必要的理论依据和实验基础。

For C/N of hog manure is lower than that of straw, quick-acting nitrogen in soil of the treatment applied M F was immobilized less than that applied C or W F.

因此，有机肥与化肥配施的各个处理在玉米拔节期，必需适量追肥，以满足玉米生育后期生殖生长的需求。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 4 4.2 7.6 0.13 0.8 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR...Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 2 1.5 2.9 0.045 0.47 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR...

载荷钢球圈列数 DN值预压预压方法导轨型号 3列 1.00圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无 EK4， FK4 轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹无 35.0 螺纹条数防尘措施防尘罩形式 W清洁环与QZ润滑装置配用 1 无。。。

For continuous queries,a filter-based approach f-kNN and a clustering-based approach c-kNN are proposed,f-kNN significantly reduces the cost by setting filter for each node in the networks,c-kNN takes advantage of the spatial-temporal property of WSNs that the data sensed in two consecutive rounds and nearby nodes will not deviate too much,and utilizes clustering analysis to find the data storage nodes.

针对快照型kNN查询，提出了一种值空间映射方法h-kNN，其利用值关系保持的哈希函数，将值相近的数据存储在相同或相邻的节点，以便查询时对查询值也采用同样映射后在小范围内搜寻即可获得结果。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。