Maintain exposure control equipment to operate in an efficient manner.
保持曝露控制设备以有效的方式运行。
Absolute exposure control is crucial, and to get it, the photographers relied on exposure histograms.
准确的曝光控制也非常重要，要做到这一点，摄影师依靠的是曝光直方图。
This allows you to control the exposure and aperture yourself.
这样我们可以自己控制曝光时间和光圈大小。
And we can always go inside - our sun exposure is mostly within our control.
并且更进一步——暴露在日光下主要是受我们控制的。
Remember that you control the ambient exposure behind your model by changing the shutter speed.
记住，通过改变快门速度来改变环境曝光。
Prevention and control of dioxin exposure.
预防和控制对二恶英的接触。
There is one last setting you can manually control to adjust the overall exposure.
这里就需要用到最后一项影响曝光的参数设定。
The men exercised on a treadmill after each exposure and control period.
在每次控制时间的暴露之后，这些人在踏车上运动。
Local infection and plate exposure happened in 4 and 3 patients in control group respectively.
对照组4例局部感染和瘘管形成，3例钛板外露。
Avoirdupois of cadmium exposure group and co-exposure group were less than control group.
染镉组和联合染毒组出现体重降低现象；
The control group was subjected to sham exposure.
对照组给予假治疗，模型组不治疗。
The control group was subjected to sham exposure.
对照组给予假治疗，模型组不治疗。
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