To enter Class B airspace, such as an approach to a major metropolitan airport, an explicit ATC clearance is required.

　　需要持有明確的空中交通管制許可才能進(jìn)入B類(lèi)空域，如接近一個(gè)大都會(huì )機場(chǎng)。

　　Explicit corporate values, for example, produced a greater percentage of decisions that were stressful due to value contention.

　　例如，明確的企業(yè)價(jià)值觀(guān)會(huì )導致更大比例的決策因價(jià)值爭奪而產(chǎn)生壓力。

　　In addition, parents and teachers can help children by providing explicit instruction regarding the mind as a learning machine.

　　此外，家長(cháng)和老師可以通過(guò)提供明確的指導來(lái)幫助孩子，將心智作為一個(gè)學(xué)習機器。

　　No explicit permission from ATC to enter is needed, although the pilot must continue to obey all regulations governing VFR flight.

　　盡管飛行員必須繼續遵守有關(guān)視覺(jué)飛行規則的所有規定，但無(wú)需獲得空中交通管制的明確進(jìn)入許可。