Check the acidity of the soil with a test kit.

用试验器具测一下土壤的酸度。

The shipment does not check with the sample.

装船的货物与货样不符。

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀点在于不可逆止回，配简化维修的复位弹簧。

The disease is kept in check with drugs.

药物控制着。