...基本上 可有五种沟通形态,即:①链式(chain );②环式(circle);③Y 式(Y ) ;④轮式(wheel );⑤全通道(AlIChannel)。见图9.3.
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只选用全通道球阀或闸阀。
不要采用可能对水流造成过大障碍的阀门。只选用全通道球阀或闸阀。
DO NOT use valves that may cause excessive restriction to water flow. Use full flow ball or gate valves only.
该文设计出一种适用于硬件实现的单窗口全通道并行编码结构,目前已通过FPGA验证。
In this paper, a hardware-oriented, full pass-parallel coding architecture is presented, based on only one scanning window. This architecture is verified on FPGA.
Now, sodium and potassium don't ordinarily move across membranes, they're charged molecules, they can't dissolve, they can't permeate through a cell membrane, but they go through because there are channels that allow them to pass through in the membrane.
钠和钾通常是不能跨过细胞膜的,它们都是带电粒子,它们不能溶解在细胞膜中,不能渗透通过细胞膜,但它们之所以能通过细胞膜,全赖膜上离子通道的作用
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