She organized a group of about 150 local businesspeople to lurk around Copley Square and, after a secret signal, in broad daylight to burst into a dance they'd rehearsed.
她组织了约150名当地商户业主，潜伏在柯普利广场附近。 然后根据秘密的信号，所有人突然蹦出来，在光天化日之下就开始跳起事先排练好的舞蹈。
It is chiefly characterized by increasing the amplitude and the duty cycle of the signal, and reducing the interference of the daylight with a special circuit.
其主要特点是通过特殊电路提高信号的幅度和占空比，同时抑制日光干扰。
The electrical signal alters the transmission of the electrochromic layer, and thus its opacity to daylight and solar heat.
电子信号改变了电致变色层的透射率，也就改变了自然光和太阳得热的透射率。
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