只有当

Daemons are usually asleep, and wake up only when a task is assigned to them.

守护程序通常是处於休眠状态，只有当任务被分配给它们时才会被唤醒。

We get true happiness only when become doers of the WORD.

只有当我们得到真正的快乐变成别人的一句话。

A baseline separation of Sitafloxacin epimers was achieved with a background electrolyte of 10 mmol/L KH2PO4-K2HPO4 (pH 4.5), 10 mmol/L CuSO4, 20 mmol/L γ-CD and 10 mmol/L D-Phe. The linear range for Sitafloxacin was 32-400 mg/L (0.996). The relative standard deviations of migration time and peak area were less than 1.9% and 3.8% respectively.

实验结果表明，添加剂的种类和浓度是影响西他沙星手性分离的重要因素，只有当D-苯丙氨酸、铜离子和γ-环糊精同时存在并达到一定浓度时，西他沙星差向异构体在毛细管电泳中才具有良好的分离效果。

It is when this fusion takes place that the mind is fully fertilised and uses all its faculties.

只有当这种融合发生，心灵才会得到完全的丰富，并起用其一切才能。

Only once these have taken place should you even think of finalising arrangements.

只有当它们发生了，你可能才会考虑怎么去处理。

But you do if you do that, this is very important , usual grip's finger position.

只有当你握拍正确时，才能做到这一点。

A report by Sarah Tofte of Human Rights Watch, a pressure group, found that at least five states required men to register if they were caught visiting prostitutes. At least 13 required it for urinating in public (in two of which, only if a child was present). No fewer than 29 states required registration for teenagers who had consensual sex with another teenager. And 32 states registered flashers and streakers.

由人权观察组织的Sarah Tofte发表的报告显示至少有5个州要求登记嫖娼人员，13个州要求记录在公共场所随意小便的人员（其中两个州要求，只有当有一名儿童在场时才需登记），29个州要求纪录存在自愿性行为的青少年，32个州要求对暴露狂和裸跑者进行登记。

Russian officials have said they would consider lowering the floor only if oil prices fall to about $30 a barrel or less and remain there.

俄罗斯官员曾说，只有当油价跌至每桶30美元或更低，并保持在那一水平时，他们才会考虑调低区间的下限。

Only when the pressure differential between the residual pressure in the gauge line and the chamber got great enough did the blockage get cleared.

只有当压差之间的残余压力，在衡量线和商会得到很大的不够没有得到清除淤塞。

Only when the pressure differential between the residual pressure in the gauge line and the chamber got large enough did the blockage get cleared.

只有当压差之间的残余压力，在衡量线和商会得到足够大的没有得到清除淤塞。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。