As preventive, spray plants with systemic insecticide or fumigate them regularly.作为预防措施, 要用内吸杀虫剂对植物定期喷洒,或熏蒸.Make sure the draining board, sink and plug hole are regularly disinfected.滴水板、水槽和塞孔一定要定期消毒。Try to get into the ...
我国中低压配电网多采用小电流接地系统.In our country, system is mainly the non - effective earthing system.我国中低压配电网一般都是中性点不接地或者经消弧线圈接地的辐射网.China's distribution systems are almost ungrounded or grounded via the arc - suppression coil.主...
We'll have to use leverage to move this huge rock.我们不得不借助杠杆之力来移动这块巨石.He has some leverage over the politician.他对这位政界人士有些影响.Hedge funds needed cash to fund redemptions and reduce leverage as assets declined.对冲基金需要现金基...
这个特殊分子的化学结构很不寻常。The chemical structure of this particular molecule is very unusual.他这样做正中种族主义分子的下怀。He is playing into the hands of racists.警方尽力阻止毒品走私分子的潜入.The police tried to prevent infiltration by drug traffickers....