The BOD test is essentially a bioassay procedure.BOD试验实际上是一项生物测定方法.It provides BOD removal levels of 25 to 30 percent.这一过程就可以脱去生化需氧量25%至30%.He was definitely a bit of an odd bod.他这人确实有点怪。This is true for BOD removal, aer...
这种结实的高强度塑料盒子在水下100英尺以内是防水的。The durable high-impact plastic case is water resistant to 100 feet.鳄鱼把它的捕获物按在水下淹死.The crocodile killed its prey by keeping it under and drowning it.汽车沉在水下20英尺处.The car was submerged under 20 f...