常見(jiàn)例句雙語(yǔ)例句An ideal den must be deep underground, where the earth is warm, but accessible from the surface via burrows or natural fissures.理想的巢穴必須深入土壤很溫暖的地下,但可以通過(guò)地洞或自然裂縫從地面進(jìn)入。By volume, only 3 percent of all water on earth is fresh water, and only about 1 percent is easily accessible surface fresh water.依重量來(lái)看,只有3%在地球的水是新鮮水,只有差不多1%是趨近于表面新鮮水。Clearance: Shortest distance between two conductive parts or between a conductive part and the accessible surface of the toy, measure through air.兩導(dǎo)體之間或?qū)w與玩具可觸及表面間最短的空間距離。 返回 accessible surface