保证膜系统消毒充分, 尤其是使用纤维素醋酸酯时, 这很难做到.
来源:互联网摘选多级 分注合格率低, 管理难度大,无效注水量难以有效控制.
来源:互联网摘选Academic research and exchanges is so difficult. because the concept of chaos.
概念混乱使学术研究与交流发生困难.
来源:互联网摘选Q: Fernando, how difficult was it for you to keep abreast with what was going on?
问: 费尔南多, 让你跟得上目前发生的事情有多困难?
来源:互联网摘选She will take some beating, ie It will be difficult to do better than her.
超越她是不易的(要做得比她好绝非易事).
来源:互联网摘选The theory by which vertical sounding data are interpreted is not difficult to apply.
解释垂向测深资料的原理应用起来并无困难.
来源:词典精选例句Because great changes axial cross section, stainless steel tube joint is difficult to process.
不锈钢管接头截面积变化大, 成形和脱模困难.
来源:互联网摘选Sometimes he had amused himself by putting difficult questions to me.
有时,他为了自得其乐,故意提些冷僻的问题刁难我.
来源:词典精选例句
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