propeller race

propeller race的基本解释

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螺旋桨尾流

与propeller race相关的网络例句 [注：此内容来源于网络，仅供参考]

Isolates from watermelon-growing areas were classified into 3 races like race 0, race 1 and race 2 which were 8 (17.4), 30 (65.2), and 8 (17.4%), respectively. Pathogenecity of race 0 isolates are weakest which only make Sugar Baby susceptible; isolates of race 1 are intermediately pathogenetic, they make Sugar Baby and Charleston susceptible Gray but Calhoun Gray resistant; isolates belonging to race 2 possess the strongest pathogenecity, which make 3 hosts susceptible. Isolates of race 0 mainly distribute over the central and southern Hebei province, whereas race 2 cover the middle and north of Hebei, isolates of race 1 exist in the whole watermelon-growing areas in Hebei province.

根据鉴别寄主对供试菌系的抗感反应，将46个西瓜枯萎病菌系划分为0号、1号和2号3个不同的生理小种，分别包括8，30和8个菌系，占供试菌系的17.4%、65.2%和17.4%；0号生理小种菌系致病性最弱，仅使品种Sugar Baby感病，以冀中和冀南居多；1号生理小种菌系致病力中等，使鉴别寄主Sugar Baby和Charleston Gray感病，而使Calhoun Gray抗病，分布在整个河北省西瓜种植区；2号生理小种的菌系致病力最强，使3个鉴别寄主均能感病，主要分布在冀中和冀北。

In the first part, first, the operational principle of Varivec Propeller is explained. Secondly, the mathematical model for predicting longitudinal and transverse movement hydrodynamic characteristics of Varivec Propeller under steady or unsteady condition are present, based on the general propeller lifting-surface theory, potential flow theory and Green theorem. Thirdly, theoretical calculation methods for predicting hydrodynamic characteristics when the influence of paraboloidal boss on the performance of Varivec Propeller is or isn't considered are present, based on The finite basic solution method, the unsteady vortex lattice method and Hess-Smith method Different rake angle is adopted according to different desire in practical application.

在理论计算部分，本文首先给出了全方向推进器的工作原理，然后基于常规螺旋桨升力面理论、势流理论和格林定理建立了定常和非定常状态下全方向推进器纵向、横向运动的水动力性能计算的数学模型，并利用有限基本解法、非定常涡格法和Hess-smith方法分别对考虑和不考虑桨毂影响时的全方向推进器纵向、横向运动水动力性能进行了数值预报。

In order to cause the result to be more reasonable, this article uses the iterative computation to convergence separately before determined the load of the forward and the after propeller respective, namely when calculates an propeller, its interference velocity which is by another propeller adds on inflow velocity to new inflow of this propeller, the continuously iterative computation for convergence.

为使水动力预报的结果更为合理，本文采用迭代计算的收敛来分别确定前桨和后桨各自的载荷，即在计算一个桨时，将另一个桨对该桨干扰速度加上该桨的来流速度来作为该桨新的来流，一直迭代计算到收敛。

与propeller race相关的网络解释 [注：此内容来源于网络，仅供参考]

propeller race：螺旋桨尾流

propeller race 螺旋桨滑流 | propeller race 螺旋桨尾流 | propeller race 推进器尾流

propeller race：推进器尾流

propeller race 螺旋桨尾流 | propeller race 推进器尾流 | propeller racing 打空车

propeller race：螺旋桨滑流

propeller pump 轴流泵 | propeller race 螺旋桨滑流 | propeller race 螺旋桨尾流

propeller race：螺桨尾流

"安装螺桨压挤量","propeller pull-up distance" | "螺桨尾流","propeller race" | "螺桨空俥,飞俥","propeller racing"

propeller race, slipstream：螺旋桨尾流

螺旋桨推力||thrust of propeller | 螺旋桨尾流||propeller race, slipstream | 螺旋桨无键连接||keyless propeller