查询词典 concave ground

1605 Antiaircraft Artillery Regiment, 4 Bomber Aircraft Corps (202, 219, 321 Bomber Aircraft Division), 5 Ground Attack Aircraft Corps (4 Guards, 264 Ground Attack Aircraft Division), 8 Ground Attack Aircraft Corps (224, 227 Ground Attack Aircraft Division), 5 Fighter Aircraft Corps (8 Guards, 256 Fighter Aircraft Division), 10 Fighter Aircraft Corps (10 Guards, 235 Fighter Aircraft Division), 10 Guards Ground Attack Aircraft Division, 331 Fighter Aircraft Division, 208 Night Bomber Aircraft Division, 98 Guards, 50 Recon Aircraft Regiment, 372, 1002 Separate Artillery Regiment

第1254﹑1554﹑1555﹑1605防空炮团，第4轰炸机军(第202﹑219﹑321轰炸机师)，第5强击机军(第4近卫强击机师，第264强击机师)，第8强击机军(第224﹑227强击机师)，第5歼击机军(第8近卫歼击机师，第256歼击机师)，第10歼击机军(第10近卫歼击机师，第235歼击机师)，第10近卫强击机师，第331歼击机师，第208夜间轰炸机师，第98近卫侦察机团，第50侦察机团，第372﹑1002独立炮兵团

Debt bottom because directly get in touch with a ground, easily be subjected to crushed stones, the paring off of grass root tree branch rows but damage, the way of the prevention includes 2:1 is choose that the neat encampment sets up camp and cleans up the hard thing of ground before supporting a tent;2 is to use tent ground cloth, the tent ground cloth generally uses a bearing of 420 Ds to whet oxford cloth, spreads on the ground to form a protection layer.

帐底因为直接接触地面，容易受到碎石，草根树枝的刮划而损坏，预防的办法有2个：1是选择平整的营地扎营，撑帐篷前清理地面的硬物；2是使用帐篷地布，帐篷地布一般使用420D的耐磨牛津布，铺在地上形成保护层。

The local factors such as topography, vegetations and soil moisture contents, have great influences on the distribution, ground temperatures, and ground ice contents of permafrost. About 50 km of wetlands have been identified along the China-Russia crude oil pipeline route. In these segments, the surficial deposits consist of peat and humic layers on the top of thick ground-ice, or ice-rich permafrost. The frozen ground engineering geology conditions in wetlands generally are the worst for building and operating the pipeline. The hazardous periglacial processes, such as the widespreadpresence of pingos, icings and frost mounds due to the extensive occurrence of the frost-susceptible soils and ample supplies of surface and ground waters in winter pose significant threats on pipeline operation.

地形地貌单元、植被分布、地表水分条件的变化等局部因素对多年冻土的分布和地下冰的赋存产生重要的影响，管道沿线大约分布有50 km左右的沼泽湿地，其表层为腐殖质土及泥炭层，泥炭层下面分布着含土冰层或地下冰，是管道沿线最差的冻土工程地质地段；由于中俄原油管道沿线水系发育多，冻胀丘、冰椎和冰幔等不良冻土现象广泛分布。

The system includes a plane-carried communication subsystem, a satellite communication subsystem, and a ground communication subsystem, wherein, the ground communication subsystem includes a first communication terminal, a second communication terminal, and a ground communication network. The ground communication subsystem also includes an incoming transfer subsystem. The first communication terminal's calling to the second communication terminal is transferred to the corresponding fixed satellite communication terminal through the ground communication network, the satellite communication terminal, and plane-carried communication subsystem according to the correspondence of incoming call transfer.

本发明系统包括机载通信子系统、卫星通信子系统和地面通信子系统，其中，所述地面通信子系统包括第一通信终端、第二通信终端、地面通信网，所述地面通信子系统还包括来电转接子系统，所述地面通信子系统中第一通信终端向第二通信终端的呼叫按照来电转接对应关系依次通过地面通信网、卫星通信子系统、机载通信系统子系统转接到对应的固定卫星通信终端。

Ground parts: an overhead-type indicator by sampling ground capacitance transient current in the first half-wave and ground transient voltage in the first half-wave, to compare their phase, when the sampling ground capacitance transient current mutation and more than a certain value, and the instantaneous voltage and grounding The first-phase half-wave, while wire-to-ground voltage is reduced, then the judge circuit grounding occurred.

接地部分：架空型指示器通过采样接地瞬间的电容电流首半波与接地瞬间的电压首半波，比较其相位，当采样接地瞬间的电容电流突变且大于一定数值，并且与接地瞬间的电压首半波同相，同时导线对地电压降低，则判断线路发生接地。

The OSIRIS telescope is a Three Mirror Anastigmat consisting of conic surfaces: a concave hyperbolic primary, a convex parabolic secondary and a concave spherical tertiary.

OSIRIS 望远镜是一个三反射系统，由一个凹双曲面主镜，一个凸抛物面次镜和一个凹球面三镜。次镜 M2在中间，主镜 M1和三镜 M3呈离轴配置。

In chapter two, under the assumption that the set of decision variables is convex and the objective functions are concave, it is shown that the set of noninferior solutions in valued space of the objective functions turns out to be a strictly decreasing, concave and no chinky block of surface, and it can be constructed recursively.

在第2章凸性假设下非劣解集的构造及其几何性质中，在假设决策变量集为凸集，目标函数向量是凹的情况下，证明了目标函数向量值空间中的非劣解集是一严格单调递减，无缝隙且凹的曲面块，并给出了m维目标函数向量值空间中非劣解集的一种递归构造方式。

Solid carbide tungsten fishtail drill is suitable for pcb flexible foil clad laminate,used for target machine drilling,the features of pcb fishtail drill are thin and flexible plate,it's structure and cutting methods are different with normal pcb drill bits.its two main cutting edge is concave and formed 100degree angle,in order to distinguish with PCB drill,named fishtail drill.fishtail drill cuts beginning of circular drill.concave along the main cutting edge to cut,chip is just two much fine filament.cuttingis falling off naturally,in order to be processed without burrformation by pcb surface.

整体硬质合金鱼尾钻适合印制电路板行业加工挠性覆箔板，为打靶机钻孔用。鱼尾钻所加工的印制电路板特性是薄板、带柔性、这样就决定了它的结构和切削方式与一般PCB钻不一样，它的两主切削刃是内凹的，两主切削刃形成100度的夹角，为了与PCB钻区别，就叫它鱼尾名。鱼尾钻切削时从我圆处钻尖开始，沿着内凹的主切削刃切削，切屑只是两条极细丝状切削，整个切削自然剥落，从而被加工印制板表面平整无毛刺。

Finally, the optimization warehousing allocation policy is achieved by digital simulation, which shows that expecting revenue is concave function of surplus capacity, and is also concave function of booking leading time, the opportunity costs is a non-increase function of surplus capacity, and is also is a non- increase function of booking leading time.

论文按照随机背包问题思路建立了考虑第三方仓储能力分配动态随机规划模型，对模型性质进行了分析，得到了基于阈值的舱位预订动态控制策略，并通过数值仿真，得知期望收益是剩余仓储能力的凹函数，是时间的凹函数；机会成本是剩余仓储能力的非增函数，是时间的非增函数。

8When the decay constant increases, the advertising cost increases in S shaped , but it decreases concave upward in concave shaped function.

8当衰变常数β递增时，除了在S型函数的广告支出呈现向上递增外，其他反应效果均为凹面向上向下递减。

It's a hardscrabble life, but getting better, for Costa Rican campesinos such as this young woman in Guanacaste province.

它是非常贫困的生活，但是转好，因为哥斯达黎加农夫例如这位年轻的女人在瓜纳卡斯特省。

In my opinion, he is a hero to be adored.

在我看来，他是一个值得敬仰的英雄。