normal oil level

基本解釋

Inspect bearing lubrication if the oil level is in normal level.
檢查軸承是否有油，滑動(dòng)軸承應(yīng)檢查是否達(dá)到規(guī)定油位。
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Before switching on the power, inspect if the liquid and oil level are filled to the normal level as required;
在通電前應(yīng)檢查液位和油位是否按要求加注至正常位置；
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During the normal oil extraction process, a working fluid level is tested anytime, since the communicating hole always communicate the tuning and an annular.
在正常抽油時(shí)，由于連通孔始終連通著油管和油套環(huán)空，因而可隨時(shí)對(duì)動(dòng)液面進(jìn)行測(cè)試。
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